Document And Entity Information - shares |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Jan. 12, 2018 |
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| Document Information [Line Items] | ||
| Entity Registrant Name | Northern Technologies International Corporation | |
| Entity Central Index Key | 0000875582 | |
| Trading Symbol | ntic | |
| Current Fiscal Year End Date | --08-31 | |
| Entity Filer Category | Smaller Reporting Company | |
| Entity Current Reporting Status | Yes | |
| Entity Voluntary Filers | No | |
| Entity Well-known Seasoned Issuer | No | |
| Entity Common Stock, Shares Outstanding (in shares) | 4,537,408 | |
| Document Type | 10-Q | |
| Document Period End Date | Nov. 30, 2017 | |
| Document Fiscal Year Focus | 2018 | |
| Document Fiscal Period Focus | Q1 | |
| Amendment Flag | false |
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- Definition If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
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- Definition Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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- Definition Trading symbol of an instrument as listed on an exchange. No definition available.
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- Definition Amounts due for royalties and service fees outside of the normal course of business from entities in which the reporting entity shares joint control with another party or group, due within 1 year (or 1 business cycle). No definition available.
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- Definition Amount due from customers or clients, but not joint ventures, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. No definition available.
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- Definition Amounts due from joint ventures, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold to joint ventures in the normal course of business. No definition available.
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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) |
Nov. 30, 2017 |
Aug. 31, 2017 |
|---|---|---|
| Trade allowance | $ 40,000 | $ 40,000 |
| Preferred stock, par value (in dollars per share) | $ 0 | $ 0 |
| Preferred stock, shares authorized (in shares) | 10,000 | 10,000 |
| Preferred stock, shares issued (in shares) | 0 | 0 |
| Preferred stock, shares outstanding (in shares) | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.02 | $ 0.02 |
| Common stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
| Common stock, shares issued (in shares) | 4,537,408 | 4,535,018 |
| Common stock, shares outstanding (in shares) | 4,537,408 | 4,535,018 |
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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Royalties and service fees from transactions directly with the reporting entity's joint ventures outside the normal course of business. No definition available.
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- Definition Joint venture operations No definition available.
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- Definition Net sales either directly to end users or to distributors worldwide, but not sales to the reporting entity's joint ventures and not sales by the reporting entity's joint ventures. No definition available.
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- Definition Net sales by the reporting entity to the reporting entity's joint ventures, but not sales by the reporting entity either directly to end users or to distributors or sales by the reporting entity’s joint ventures. No definition available.
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- Definition Weighted average number of shares outstanding, basic and diluted[abstract] No definition available.
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total costs related to goods produced and sold during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, before tax, of income (loss) including portion attributable to noncontrolling interest. Includes, but is not limited to, income (loss) from continuing operations, discontinued operations and equity method investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- References No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Expenses recognized in the period that are directly related to the selling and distribution of products or services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| NET INCOME | $ 1,198,589 | $ 406,693 |
| Other comprehensive LOSS– foreign currency translation adjustment | (25,226) | (1,250,812) |
| COMPREHENSIVE INCOME (LOSS) | 1,173,363 | (844,119) |
| COMPREHENSIVE INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS | 136,916 | 60,372 |
| COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO NTIC | $ 1,036,447 | $ (904,491) |
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Consolidated Statements of Cash Flows (Unaudited) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| CASH FLOWS FROM OPERATING ACTIVITIES: | ||
| Net income | $ 1,198,589 | $ 406,693 |
| Adjustments to reconcile net income to net cash used in operating activities: | ||
| Stock-based compensation | 103,267 | 97,916 |
| Depreciation expense | 208,486 | 193,896 |
| Amortization expense | 62,177 | 29,759 |
| Equity in income from joint ventures | (1,741,328) | (1,274,004) |
| Deferred income taxes | 25,242 | |
| Dividends received from joint ventures | 63,937 | |
| Receivables: | ||
| Trade, excluding joint ventures | (1,364,409) | (762,525) |
| Trade, joint ventures | 171,099 | 91,385 |
| Fees for services provided to joint ventures | (7,874) | (15,518) |
| Income taxes | (101,908) | 84,922 |
| Inventories | (530,401) | 274,437 |
| Prepaid expenses and other | (250,280) | (180,021) |
| Accounts payable | 1,278,940 | 378,397 |
| Income tax payable | 102,618 | (102,314) |
| Accrued liabilities | (622,696) | (172,691) |
| Net cash used in operating activities | (1,429,783) | (924,426) |
| CASH FLOWS FROM INVESTING ACTIVITIES: | ||
| Additions to property and equipment | (87,250) | (112,589) |
| Proceeds from the sale of available for sale securities | 497,896 | |
| Purchase of available for sale securities | (3,257) | |
| Additions to patents | (31,423) | (58,202) |
| Net cash (used in) provided by investing activities | (121,930) | 327,105 |
| CASH FLOWS FROM FINANCING ACTIVITIES: | ||
| Dividend received by non-controlling interest | (200,000) | (200,000) |
| Repurchase of common stock | (71,712) | |
| Proceeds from option exercises | 15,375 | |
| Proceeds from employee stock purchase plan | 12,481 | 32,955 |
| Net cash used in financing activities | (172,144) | (238,757) |
| EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS: | (9,131) | (30,056) |
| NET DECREASE IN CASH AND CASH EQUIVALENTS | (1,732,988) | (866,134) |
| CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 6,360,201 | 3,395,274 |
| CASH AND CASH EQUIVALENTS AT END OF PERIOD | $ 4,627,213 | $ 2,529,140 |
| X | ||||||||||
- Definition The net change during the reporting period in amount due within one year (or one business cycle) from joint ventures for royalties and service fees outside of the normal course of business. No definition available.
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- Definition The net change during the reporting period in amount due within one year (or one business cycle) from customers or clients, but not joint ventures, for the credit sale of goods and services. No definition available.
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- Definition The net change during the reporting period in amount due within one year (or one business cycle) from joint ventures for the credit sale of goods and services that have been delivered or sold to joint ventures in the normal course of business. No definition available.
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- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in prepaid expenses, and assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Dividends received on equity and other investments during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow associated with the amount received from the stock plan during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 1 - Interim Financial Information |
3 Months Ended |
|---|---|
Nov. 30, 2017 | |
| Notes to Financial Statements | |
| Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] | 1. INTERIM FINANCIAL INFORMATIONIn the opinion of management, the accompanying unaudited consolidated financial statements contain all necessary adjustments, which are of a normal recurring nature, and present fairly the consolidated financial position of Northern Technologies International Corporation and its subsidiaries (the Company) as of November 30, 2017 and August 31, 2017 and the results of their operations for the three months ended November 30, 2017 and 2016 and their cash flows for the three months ended November 30, 2017 and 2016, in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP).These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s annual report on Form 10 -K for the fiscal year ended August 31, 2017. These consolidated financial statements also should be read in conjunction with the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section appearing in this report.Operating results for the three months ended November 30, 2017 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 31, 2018. The Company evaluates events occurring after the date of the consolidated financial statements requiring recording or disclosure in the consolidated financial statements. |
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- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 2 - Accounting Pronouncements |
3 Months Ended |
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Nov. 30, 2017 | |
| Notes to Financial Statements | |
| Description of New Accounting Pronouncements Not yet Adopted [Text Block] | 2. Accounting PronouncementS New Accounting Pronouncements Adopted In July 2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2015 -11, “Inventory ,” which modifies the subsequent measurement of inventories recorded under a first -in-first -out or average cost method. Under the new standard, such inventories are required to be measured at the lower of cost and net realizable value. The Company has adopted this new standard in the first quarter of fiscal 2018 on a prospective basis. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements.In March 2016, the FASB issued ASU No. 2016 -07, “Investments – Equity Method and Joint Ventures (Topic .” Among other things, the amendments in ASU 323 ): Simplifying the Transition to the Equity Method of Accounting2016 -07 eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The amendments require that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The Company adopted this new standard in the first quarter of fiscal 2018 on a prospective basis. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements.In March 2016, the FASB issued ASU 2016 -09, Stock Compensation , (Topic , which is intended to simplify several aspects of the accounting for share-based payment award transactions. The Company adopted this new guidance in the 718 )first quarter of fiscal 2018. The adoption of this guidance did not have a material effect on the Company’s consolidated results of operations and financial position.Recently Issued Accounting Pronouncements In May 2014, the FASB issued Revenue from Contracts with Customers, Topic (ASU 606 No. 2014 -09 ), which provides a framework for the recognition of revenue, with the objective that recognized revenues properly reflect amounts an entity is entitled to receive in exchange for goods and services. This guidance, which includes additional disclosure requirements regarding revenue, cash flows and obligations related to contracts with customers, was originally to be effective for the Company beginning in fiscal year 2018. In July 2015, the FASB confirmed a one -year deferral of the effective date of the new revenue standard which also allows early adoption as of the original effective date. The updated guidance will be effective for the Company’s first quarter of 2019. The Company is currently evaluating the impact of adopting ASU 2014 -09 on its consolidated financial statements, but currently believes that the timeline established for implementation is attainable.During February 2016, FASB issued ASU No. 2016 -02, “Leases .” ASU No. 2016 -02 was issued to increase transparency and comparability among organizations by recognizing all lease transactions (with terms in excess of 12 months) on the balance sheet as a lease liability and a right-of-use asset (as defined). ASU No. 2016 -02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with earlier application permitted. Upon adoption, the lessee will apply the new standard retrospectively to all periods presented or retrospectively using a cumulative effect adjustment in the year of adoption. The guidance will be effective for the Company’s first quarter of 2020. The Company is currently assessing the effect that ASU No. 2016 -02 will have on its consolidated financial statements.In August 2016, the FASB issued ASU No. 2016 -15, Statement of Cash Flows, Classification of Certain Cash Receipts and Cash Payments. ASU 2016 -15 eliminates the diversity in practice related to the classification of certain cash receipts and payments for debt prepayments or extinguishment costs, the maturing of a zero coupon bond, the settlement of contingent liabilities arising from a business combination, proceeds from insurance settlements, distributions from certain equity method investees and beneficial interests obtained in a financial asset securitization. ASU 2016 -15 designates the appropriate cash flow classification, including requirements to allocate certain components of these cash receipts and payments among operating, investing and financing activities. The guidance is effective for fiscal years beginning December 15, 2017. Early adoption is permitted. The Company is currently evaluating the effects of adopting ASU 2016 -15 on its consolidated financial statements, but the adoption is not expected to have a significant impact on its consolidated financial statements.Although there are several other new accounting pronouncements issued or proposed by the FASB, which the Company has adopted or will adopt, as applicable, the Company does not believe any of these accounting pronouncements has had or will have a material impact on the Company’s consolidated financial position or operating results. |
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- Definition The entire disclosure for a new accounting pronouncement that has been issued but not yet adopted. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Note 3 - Inventories |
3 Months Ended | ||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||
| Inventory Disclosure [Text Block] | 3. INVENTORIESInventories consisted of the following:
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- References No definition available.
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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 4 - Property and Equipment, Net |
3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Nov. 30, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant and Equipment Disclosure [Text Block] | 4. PROPERTY AND EQUIPMENT, NETProperty and equipment, net consisted of the following:
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- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 5 - Patents and Trademarks, Net |
3 Months Ended | ||||||||||||||||||||||||||||||||||||
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Nov. 30, 2017 | |||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||
| Intangible Assets Disclosure [Text Block] | 5. PATENTS AND TRADEMARKS, NETPatents and trademarks, net consisted of the following:
Patent and trademark costs are amortized over seven years. Costs incurred related to patents and trademarks are capitalized until filed and approved, at which time the amounts capitalized to date are amortized and any further costs, including maintenance costs, are expensed as incurred. Amortization expense is estimated to approximate $240,000 five fiscal years. |
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- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for all or part of the information related to intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 6 - Investments in Joint Ventures |
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity Method Investments and Joint Ventures Disclosure [Text Block] | 6. INVESTMENTS IN JOINT VENTURESThe financial statements of the Company’s foreign joint ventures are initially prepared using the accounting principles accepted in the respective joint ventures’ countries of domicile. Amounts related to foreign joint ventures reported in the below tables and the accompanying consolidated financial statements have subsequently been adjusted to conform with U.S. GAAP in all material respects. All material profits recorded that remain on the balance sheet on sales from the Company to its joint ventures and from joint ventures to other joint ventures have been eliminated for financial reporting purposes. Financial information from the audited and unaudited financial statements of the Company’s joint ventures in Germany, Excor Korrosionsschutz – Technologien und Produkte GmbH (EXCOR) and all the Company’s other joint ventures, are summarized as follows:
The Company did not three months ended November 30, 2017 or 2016. |
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- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 7 - Corporate Debt |
3 Months Ended |
|---|---|
Nov. 30, 2017 | |
| Notes to Financial Statements | |
| Debt Disclosure [Text Block] | 7. CORPORATE DEBTThe Company has a revolving line of credit with PNC Bank, National Association (PNC Bank) of $3,000,000. No November 30, 2017 and August 31, 2017. At the option of the Company, outstanding advances under the line of credit bear interest at either (a) an annual rate based on LIBOR plus 2.15% for the applicable LIBOR interest period selected by the Company or (b) at the rate publicly announced by PNC Bank from time to time as its prime rate.The line of credit is governed under a loan agreement. The loan agreement contains standard covenants, including affirmative financial covenants, such as the maintenance of a minimum fixed charge coverage ratio, and negative covenants, which, among other things, limit the incurrence of additional indebtedness, loans and equity investments, disposition of assets, mergers and consolidations and other matters customarily restricted in such agreements. Under the loan agreement, the Company is subject to a minimum fixed charge coverage ratio of 1.10:1.00. As of November 30, 2017, the Company was in compliance with all debt covenants.The revolving credit facility allows the Company to request that PNC Bank issue letters of credit up to $1,200,000. The Company did not November 30, 2017 and August 31, 2017 with PNC Bank. The availability of advances under the line of credit will be reduced by the face amount of any letter of credit issued and outstanding (whether or not drawn) under the revolving credit facility. As of November 30, 2017 and August 31, 2017, the Company had $88,831 and $89,543, respectively, of letters of credit with JP Morgan Chase Bank that are performance based and set to expire between 2020 and 2022. On January 5, 2018, the Company and PNC Bank extended the maturity date of the line of credit to January 7, 2019. All other terms of the line of credit and the loan agreement and other documents evidencing the line of credit remain the same. |
| X | ||||||||||
- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Note 8 - Stockholders' Equity |
3 Months Ended |
|---|---|
Nov. 30, 2017 | |
| Notes to Financial Statements | |
| Stockholders' Equity Note Disclosure [Text Block] | 8. STOCKHOLDERS’ EQUITYOn November 20, 2017, the Company’s Board of Directors declared a cash dividend of $0.10 per share of the Company’s common stock, payable on December 21, 2017 December 8, 2017 .During the three months ended November 30, 2017, the Company repurchased no shares of its common stock. During the three months ended November 30, 2017, stock options to purchase an aggregate of 1,500 shares of common stock were exercised at a weighted average exercise price of $10.25 per share.The Company granted stock options under the Northern Technologies International Corporation Amended and Restated 2007 Stock Incentive Plan (the 2007 Plan) to purchase an aggregate of 47,252 shares of its common stock to various employees and directors during the three months ended November 30, 2017. The weighted average per share exercise price of the stock options is $18.35, which was equal to the fair market value of the Company’s common stock on the date of grant.During the three months ended November 30, 2016, the Company repurchased and retired 5,575 shares of its common stock at a price of $12.87 per share. No stock options to purchase shares of common stock were exercised during the three months ended November 30, 2016. The Company issued 891 and 3,029 shares of common stock on September 1, 2017 and 2016, respectively, under the Northern Technologies International Corporation Employee Stock Purchase Plan (the ESPP).The Company granted stock options under the 2007 Plan to purchase an aggregate of 56,677 shares of its common stock to various employees and directors during the three months ended November 30, 2016. The weighted average per share exercise price of the stock options is $13.40, which is equal to the fair market value of the Company’s common stock on the date of grant. |
| X | ||||||||||
- References No definition available.
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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 9 - Net Income Per Common Share |
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| Earnings Per Share [Text Block] | 9. NET INCOME PER COMMON SHARE Basic net income per common share is computed by dividing net income by the weighted average number of common shares outstanding. Diluted net income per share assumes the exercise of stock options using the treasury stock method, if dilutive. The following is a reconciliation of the earnings per share computation for the three months ended November 30, 2017 and 2016:
The dilutive impact summarized above relates to the periods when the average market price of the Company’s common stock exceeded the exercise price of the potentially dilutive option securities granted. Earnings per common share were based on the weighted average number of common shares outstanding during the periods when computing the basic earnings per share. When dilutive, stock options are included as equivalents using the treasury stock market method when computing the diluted earnings per share. Excluded from the computation of diluted income per share for the three months ended November 30, 2017 were options outstanding to purchase 92,319 shares of common stock. Excluded from the computation of diluted earnings per share for the three months ended November 30, 2016 were options outstanding to purchase 211,564 shares of common stock. |
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- References No definition available.
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- Definition The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 10 - Stock-based Compensation |
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| Disclosure of Compensation Related Costs, Share-based Payments [Text Block] | 10. STOCK-BASED COMPENSATIONThe Company has two stock-based compensation plans under which stock options and other stock-based awards have been granted, the Northern Technologies International Corporation Amended and Restated 2007 Stock Incentive Plan and the Northern Technologies International Corporation Employee Stock Purchase Plan. The Compensation Committee of the Board of Directors and the Board of Directors administer these plans.The 2007 Plan provides for the grant of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock, stock unit awards, performance awards and stock bonuses to eligible recipients to enable the Company and its subsidiaries to attract and retain qualified individuals through opportunities for equity participation in the Company, and to reward those individuals who contribute to the achievement of the Company’s economic objectives. Subject to adjustment as provided in the 2007 Plan, up to a maximum of 800,000 shares of the Company’s common stock are issuable under the 2007 Plan. Options granted under the 2007 Plan generally have a term of ten years and become exercisable over a three - or four -year period beginning on the one -year anniversary of the date of grant. Options are granted at per share exercise prices equal to the market value of the Company’s common stock on the date of grant. The Company issues new shares upon the exercise of options. As of November 30, 2017, only stock options and stock bonuses had been granted under the 2007 Plan.The maximum number of shares of common stock of the Company available for issuance under the ESPP is 100,000 shares, subject to adjustment as provided in the ESPP. The ESPP provides for six -month offering periods beginning on September 1 and March 1 of each year. The purchase price of the shares is 90% of the lower of the fair market value of common stock at the beginning or end of the offering period. This discount may not exceed the maximum discount rate permitted for plans of this type under Section 423 of the Internal Revenue Code of 1986, as amended. The ESPP is compensatory for financial reporting purposes.The Company granted options to purchase an aggregate of 47,252 and 56,677 shares of its common stock during the three months ended November 30, 2017 and 2016, respectively. The fair value of option grants is determined at date of grant, using the Black-Scholes option pricing model with the assumptions listed below. The Company recognized compensation expense of $103,267 and $97,916 during the three months ended November 30, 2017 and 2016, respectively, related to the options that vested during such time period. As of November 30, 2017, the total compensation cost for nonvested options not yet recognized in the Company’s consolidated statements of operations was $528,936, net of estimated forfeitures. Stock-based compensation expense of $309,801 is expected through the remainder of fiscal year 2018, and $153,901 and $65,234 is expected to be recognized during fiscal 2019 and fiscal 2020, respectively, based on outstanding options as of November 30, 2017. Future option grants will impact the compensation expense recognized. Stock-based compensation expense is included in general and administrative expense on the consolidated statements of operations.The fair value of each option grant is estimated on the grant date using the Black-Scholes option pricing model with the following assumptions and results for the grants:
The weighted average per share fair value of options granted during the three months ended November 30, 2017 and 2016 was $7.75 and $7.69, respectively. The weighted average remaining contractual life of the options outstanding as of November 30, 2017 and 2016 was 6.95 years and 7.15 years, respectively. |
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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Note 11 - Segment and Geographical Information |
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting Disclosure [Text Block] | 11. SEGMENT AND GEOGRAPHICAL INFORMATIONSegment Information The Company’s chief operating decision maker (CODM) is its Chief Executive Officer. The Company’s business is organized into two reportable segments: ZERUST® and Natur-Tec®. The Company has been selling its proprietary ZERUST® rust and corrosion inhibiting products and services to the automotive, electronics, electrical, mechanical, military and retail consumer markets for over 40 years, and more recently, has targeted and expanded into the oil and gas industry. The Company also sells a portfolio of bio-based and compostable (fully biodegradable) polymer resins and finished products under the Natur-Tec® brand.The following table sets forth the Company’s net sales for the three months ended November 30, 2017 and 2016 by segment:
The following table sets forth the Company’s cost of goods sold for the three months ended November 30, 2017 and 2016 by segment:
The Company utilizes product net sales and direct and indirect cost of goods sold for each product in reviewing the financial performance of a product type. Further allocation of Company expenses or assets, aside from amounts presented in the tables above, is not utilized in evaluating product performance, nor does such allocation occur for internal financial reporting.Geographic Information Net sales by geographic location for the three months ended November 30, 2017 and 2016 were as follows:
Net sales by geographic location are based on the location of the customer. Fees for services provided to joint ventures by geographic location as a percentage of total fees for services provided to joint ventures during the three months ended November 30, 2017 and 2016 were as follows:
The geographical distribution of key financial statement data is as follows:
Total property and equipment are periodically reviewed to assure the net realizable value from the estimated future production based on forecasted sales exceeds the carrying value of the assets. Total assets located in the United States include the Company’s investments in joint ventures. Sales to the Company’s joint ventures are included in the foregoing segment and geographic information; however, sales by the Company’s joint ventures to other parties are not included. The foregoing segment and geographic information represents only sales and cost of goods sold recognized directly by the Company.All joint venture operations, including equity in income, fees for services and related dividends, are primarily related to ZERUST ® products and services. |
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- References No definition available.
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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 12 - Commitments and Contingencies |
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Nov. 30, 2017 | |
| Notes to Financial Statements | |
| Commitments and Contingencies Disclosure [Text Block] | 12. COMMITMENTS AND CONTINGENCIESOn August 31, 2017, the Compensation Committee of the Board of Directors of the Company approved the material terms of an annual bonus plan for the Company’s executive officers as well as certain officers and employees for the fiscal year ending August 31, 2018. For fiscal 2018 as in past years, the total amount available under the bonus plan for all plan participants, including executive officers, is dependent upon the Company’s earnings before interest, taxes and other income, as adjusted to take into account amounts to be paid under the bonus plan and certain other adjustments (Adjusted EBITOI). Each plan participant’s percentage of the overall bonus pool is based upon the number of plan participants, the individual’s annual base salary and the individual’s position and level of responsibility within the company. In the case of each of the Company’s executive officer participants, 75% of the amount of their individual bonus payout will be determined based upon the Company’s actual EBITOI for fiscal 2018 compared to a pre-established target EBITOI for fiscal 2018 and 25% of the payout will be determined based upon such executive officer’s achievement of certain pre-established individual performance objectives. The payment of bonuses under the plan are discretionary and may be paid to executive officer participants in both cash and shares of the Company’s common stock, the exact amount and percentages will be determined by the Company’s Board of Directors, upon recommendation of the Compensation Committee, after the completion of the Company’s consolidated financial statements for fiscal 2018. There was $318,000 accrued for management bonuses for the three months ended November 30, 2017 compared to $98,000 accrued for management bonuses for the three months ended November 30, 2016. Four joint ventures (consisting of the Company’s joint ventures in South Korea, Thailand, Indonesia and India) accounted for 93.6% of the Company’s trade joint venture receivables at November 30, 2017 and three joint ventures (consisting of the Company’s joint ventures in South Korea, Thailand and India) accounted for 60.7% of the Company’s trade joint venture receivables at August 31, 2017. From time to time, the Company is subject to various other claims and legal actions in the ordinary course of its business. The Company records a liability in its consolidated financial statements for costs related to claims, including future legal costs, settlements and judgments, where the Company has assessed that a loss is probable and an amount could be reasonably estimated. If the reasonable estimate of a probable loss is a range, the Company records the most probable estimate of the loss or the minimum amount when no amount within the range is a better estimate than any other amount. The Company discloses a contingent liability even if the liability is not probable or the amount is not estimable, or both, if there is a reasonable possibility that material loss may have been incurred. In the opinion of management, as of November 30, 2017, the amount of liability, if any, with respect to these matters, individually or in the aggregate, will not materially affect the Company’s consolidated results of operations, financial position or cash flows. |
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- Definition The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Note 13 - Fair Value Measurements |
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| Fair Value, Measurement Inputs, Disclosure [Text Block] | 13. Fair Value Measurements Assets and liabilities that are measured at fair value on a recurring basis primarily relate to marketable equity securities. These items are marked-to-market at each reporting period, the market value approximates the cost basis. The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring basis:
The available for sale securities are mainly fixed income mutual funds. There were no transfers between Level 1, Level 2, or Level 3 during the three months ended November 30, 2017 and 2016. |
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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 14 - Supplemental Cash Flow Information |
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| Cash Flow, Supplemental Disclosures [Text Block] | 14. SUPPLEMENTAL CASH FLOW INFORMATION Supplemental disclosures of cash flow information consisted of:
Non-cash financing activity consisted of:
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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 15 - Subsequent Event |
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| Notes to Financial Statements | |
| Subsequent Events [Text Block] | 15. SUBSEQUENT EVENT On December 22, 2017, the Tax Cuts and Jobs Act (Act), was enacted into law and is expected to impact the Company’s operating results, cash flows, and financial condition. The Company is currently evaluating the potential impacts of the Act. The Act includes a number of provisions, including the lowering of the U.S. corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. The Act also includes provisions that may partially offset the benefit of such rate reduction, including the repeal of the deduction for domestic production activities. The effect of the international provisions of the Act, which generally establish a territorial-style system for taxing foreign-source income of domestic multinational corporations, is uncertain. As a result of the Act, the Company expects there will be one -time adjustments for the re-measurement of deferred tax assets (liabilities) and the deemed repatriation tax on unremitted foreign earnings and profits. Quantifying the impacts of the Act is not practicable at this time due, among other things, to the inherent complexities involved. Accordingly, the Company expects to continue to analyze such impacts and record any such amounts in the second quarter of fiscal 2018. |
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- References No definition available.
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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 3 - Inventories (Tables) |
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| Schedule of Inventory, Current [Table Text Block] |
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Note 4 - Property and Equipment, Net (Tables) |
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 5 - Patents and Trademarks, Net (Tables) |
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| Schedule of Finite-Lived Intangible Assets [Table Text Block] |
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Note 6 - Investments in Joint Ventures (Tables) |
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| Condensed Balance Sheet [Table Text Block] |
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| Condensed Income Statement [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of condensed income statement, including, but not limited to, income statements of consolidated entities and consolidation eliminations. No definition available.
|
| X | ||||||||||
- References No definition available.
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Note 9 - Net Income Per Common Share (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Nov. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Note 10 - Stock-based Compensation (Tables) |
3 Months Ended | ||||||||||||||||||||||||
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Nov. 30, 2017 | |||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||
| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Note 11 - Segment and Geographical Information (Tables) |
3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Nov. 30, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
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| Reconciliation of Cost of Goods Sold from Segments to Consolidated [Table Text Block] |
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| Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
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| Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
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| Revenue from External Customers by Geographic Areas [Table Text Block] |
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| Fees for Services Provided to Joint Ventures [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of all significant reconciling items in the reconciliation of total cost of goods sold from reportable segments to the entity's consolidated revenues. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Details
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Note 13 - Fair Value Measurements (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nov. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, applied during the period to each separate class of assets, liabilities, and financial instruments classified in shareholders' equity that are measured on a recurring and/or nonrecurring basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
Note 14 - Supplemental Cash Flow Information (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nov. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|
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| X | ||||||||||
- Definition Tabular disclosure of supplemental cash flow information for the periods presented. No definition available.
|
| X | ||||||||||
- References No definition available.
|
Note 3 - Inventories - Inventories (Details) - USD ($) |
Nov. 30, 2017 |
Aug. 31, 2017 |
|---|---|---|
| Production materials | $ 1,851,735 | $ 1,747,189 |
| Finished goods | 6,117,593 | 5,709,363 |
| Total inventory | $ 7,969,328 | $ 7,456,552 |
| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Note 4 - Property and Equipment, Net - Components of Property and Equipment, Net (Details) - USD ($) |
Nov. 30, 2017 |
Aug. 31, 2017 |
|---|---|---|
| Land | $ 310,365 | $ 310,365 |
| Buildings and improvements | 6,855,488 | 6,847,177 |
| Machinery and equipment | 4,246,967 | 4,171,387 |
| Gross | 11,412,820 | 11,328,929 |
| Less accumulated depreciation | (4,177,519) | (3,969,267) |
| Net | $ 7,235,301 | $ 7,359,662 |
| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount before accumulated depletion of real estate held for productive use, excluding land held for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Note 5 - Patents and Trademarks, Net (Details Textual) - Patents and Trademarks [Member] |
3 Months Ended |
|---|---|
|
Nov. 30, 2017
USD ($)
| |
| Finite-Lived Intangible Asset, Useful Life | 7 years |
| Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year | $ 240,000 |
| Finite-Lived Intangible Assets, Amortization Expense, Year Five | 240,000 |
| Finite-Lived Intangible Assets, Amortization Expense, Year Two | 240,000 |
| Finite-Lived Intangible Assets, Amortization Expense, Year Three | 240,000 |
| Finite-Lived Intangible Assets, Amortization Expense, Year Four | $ 240,000 |
| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
Note 5 - Patents and Trademarks, Net - Patents and Trademarks, Net (Details) - USD ($) |
Nov. 30, 2017 |
Aug. 31, 2017 |
|---|---|---|
| Patents and trademarkes, net | $ 1,291,335 | $ 1,322,089 |
| Patents and Trademarks [Member] | ||
| Patents and trademarks | 2,769,382 | 2,737,959 |
| Less accumulated amortization | (1,478,047) | (1,415,870) |
| Patents and trademarkes, net | $ 1,291,335 | $ 1,322,089 |
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
Note 6 - Investments in Joint Ventures (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Payments to Acquire Interest in Joint Venture | $ 0 | $ 0 |
| X | ||||||||||
- Definition The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Note 6 - Investments in Joint Ventures - Condensed Balance Sheet of EXCOR and All Other Joint Ventures (Details) - USD ($) |
3 Months Ended | 12 Months Ended |
|---|---|---|
Nov. 30, 2017 |
Aug. 31, 2017 |
|
| Current assets | $ 57,249,505 | $ 51,518,210 |
| Total assets | 61,290,726 | 55,633,891 |
| Current liabilities | 17,410,457 | 15,118,074 |
| Noncurrent liabilities | 184,251 | 181,210 |
| Joint ventures’ equity | 43,696,018 | 40,334,607 |
| Northern Technologies International Corporation’s share of joint ventures’ equity | 21,701,913 | 20,035,074 |
| Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings | 19,590,029 | 17,960,860 |
| Northern Technologies International Corporation's dividends received from joint ventures | 63,937 | 6,377,054 |
| EXCOR [Member] | ||
| Current assets | 25,234,973 | 22,142,514 |
| Total assets | 27,337,417 | 24,301,194 |
| Current liabilities | 4,987,804 | 4,469,567 |
| Noncurrent liabilities | ||
| Joint ventures’ equity | 22,349,613 | 19,831,627 |
| Northern Technologies International Corporation’s share of joint ventures’ equity | 11,174,808 | 9,915,816 |
| Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings | 11,143,903 | 9,884,911 |
| Northern Technologies International Corporation's dividends received from joint ventures | 5,379,062 | |
| Joint Venture in India [Member] | ||
| Current assets | 32,014,532 | 29,375,696 |
| Total assets | 33,953,309 | 31,332,697 |
| Current liabilities | 12,422,653 | 10,648,507 |
| Noncurrent liabilities | 184,251 | 181,210 |
| Joint ventures’ equity | 21,346,405 | 20,502,980 |
| Northern Technologies International Corporation’s share of joint ventures’ equity | 10,527,105 | 10,119,258 |
| Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings | 8,446,126 | 8,075,949 |
| Northern Technologies International Corporation's dividends received from joint ventures | $ 63,937 | $ 997,992 |
| X | ||||||||||
- Definition Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of current assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of current liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of noncurrent liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This item represents the entity's ownership percentage in the investee multiplied by the investee's total equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50% or less owned persons accounted for by the equity method (equity method investees). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 6 - Investments in Joint Ventures - Condensed Income Statement of EXCOR and All Other Joint Ventures (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Net sales | $ 28,498,711 | $ 24,200,447 |
| Gross profit | 12,788,122 | 10,697,027 |
| Net income | 3,499,815 | 2,408,008 |
| Equity in income from joint ventures | 1,741,328 | 1,274,004 |
| EXCOR [Member] | ||
| Net sales | 11,026,514 | 9,208,524 |
| Gross profit | 5,933,526 | 4,894,179 |
| Net income | 2,483,800 | 1,856,338 |
| Equity in income from joint ventures | 1,241,900 | 928,169 |
| Joint Venture in India [Member] | ||
| Net sales | 17,472,197 | 14,991,923 |
| Gross profit | 6,854,596 | 5,802,848 |
| Net income | 1,016,015 | 551,670 |
| Equity in income from joint ventures | $ 499,428 | $ 345,835 |
| X | ||||||||||
- Definition The amount of gross profit (loss) reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of net income (loss) reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 7 - Corporate Debt (Details Textual) |
3 Months Ended | |
|---|---|---|
|
Nov. 30, 2017
USD ($)
|
Aug. 31, 2017
USD ($)
|
|
| Term Loan and Line of Credit, Agreements, Loan Agreements [Member] | ||
| Debt Instrument, Covenants, Fixed Charge Coverage Ratio | 1.1 | |
| PNC Bank [Member] | ||
| Letters of Credit Outstanding, Amount | $ 0 | $ 0 |
| PNC Bank [Member] | Revolving Credit Facility [Member] | ||
| Line of Credit Facility, Maximum Borrowing Capacity | 3,000,000 | |
| Long-term Line of Credit | $ 0 | 0 |
| PNC Bank [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | ||
| Debt Instrument, Basis Spread on Variable Rate | 2.15% | |
| PNC Bank [Member] | Letter of Credit [Member] | ||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 1,200,000 | |
| JP Morgan Chase Bank [Member] | ||
| Letters of Credit Outstanding, Amount | $ 88,831 | $ 89,543 |
| X | ||||||||||
- Definition Represents the fixed charge coverage ratio for the debt instrument under the covenant terms. No definition available.
|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
| X | ||||||||||
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 8 - Stockholders' Equity (Details Textual) - $ / shares |
3 Months Ended | ||||
|---|---|---|---|---|---|
Nov. 20, 2017 |
Sep. 01, 2017 |
Sep. 01, 2016 |
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Common Stock, Dividends, Per Share, Declared | $ 0.10 | $ 0.10 | $ 0 | ||
| Stock Repurchased and Retired During Period, Shares | 0 | 5,575 | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 1,500 | 0 | |||
| Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price | $ 10.25 | ||||
| Treasury Stock Acquired, Average Cost Per Share | $ 12.87 | ||||
| Stock Issued During Period, Shares, Employee Stock Purchase Plans | 891 | 3,029 | |||
| Dividends Payable, Date to be Paid | Dec. 21, 2017 | ||||
| Dividends Payable, Date of Record | Dec. 08, 2017 | ||||
| The 2007 Plan [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 47,252 | 56,677 | |||
| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ 18.35 | $ 13.40 | |||
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. No definition available.
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Number of shares issued during the period as a result of an employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
Note 9 - Net Income Per Common Share (Details Textual) - shares |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Employee Stock Option [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 92,319 | 211,564 |
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
Note 9 - Net Income Per Common Share - Reconciliation of the Earnings Per Share Computations (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Net income attributable to NTIC | $ 1,083,626 | $ 297,639 |
| Basic – weighted shares outstanding (in shares) | 4,537,368 | 4,531,950 |
| Weighted shares assumed upon exercise of stock options (in shares) | 71,420 | 26,928 |
| Diluted – weighted shares outstanding (in shares) | 4,608,788 | 4,558,878 |
| Basic earnings per share: (in dollars per share) | $ 0.24 | $ 0.07 |
| Diluted earnings per share: (in dollars per share) | $ 0.24 | $ 0.07 |
| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Note 10 - Stock-based Compensation (Details Textual) |
3 Months Ended | |
|---|---|---|
|
Nov. 30, 2017
USD ($)
$ / shares
shares
|
Nov. 30, 2016
USD ($)
$ / shares
shares
|
|
| Number of Stock-based Compensation Plans | 2 | |
| Stock or Unit Option Plan Expense | $ 103,267 | $ 97,916 |
| Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options | 528,936 | |
| Allocated Share-based Compensation Expense, Estimate Remainder of Fiscal Year | 309,801 | |
| Allocated Share-based Compensation Expense, Estimate, Next Fiscal Year | 153,901 | |
| Allocated Share-based Compensation Expense, Estimate, Fiscal Year Two | $ 65,234 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares | $ 7.75 | $ 7.69 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | 6 years 346 days | 7 years 54 days |
| The 2007 Plan [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares | 800,000 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years | |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares | 47,252 | 56,677 |
| The 2007 Plan [Member] | One Year after Date of Grant [Member] | Minimum [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years | |
| The 2007 Plan [Member] | One Year after Date of Grant [Member] | Maximum [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years | |
| ESPP [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares | 100,000 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent | 90.00% | |
| X | ||||||||||
- Definition Estimated expense to be recognized for the second fiscal year following the most recent fiscal year arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. No definition available.
|
| X | ||||||||||
- Definition Estimated expense to be recognized for the next fiscal year following the most recent fiscal year arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. No definition available.
|
| X | ||||||||||
- Definition Estimated expense to be recognized for the remainder of the fiscal year arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. No definition available.
|
| X | ||||||||||
- Definition The number of stock-based compensation plans administered by the Compensation Committee of the Board of Directors and the Board of Directors, during the period. No definition available.
|
| X | ||||||||||
- Definition Unrecognized cost of unvested options awarded to employees as compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Purchase price of common stock expressed as a percentage of its fair value. No definition available.
|
| X | ||||||||||
- Definition The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 10 - Stock-based Compensation - Black-scholes Option-pricing Model Assumptions (Details) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Dividend yield | 2.18% | 0.00% |
| Expected volatility | 45.90% | 46.40% |
| Expected life of option (Year) | 10 years | 10 years |
| Average risk-free interest rate | 1.87% | 1.63% |
| X | ||||||||||
- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Note 11 - Segment and Geographical Information (Details Textual) |
3 Months Ended |
|---|---|
Nov. 30, 2017 | |
| Number of Reportable Segments | 2 |
| X | ||||||||||
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. No definition available.
|
Note 11 - Segment and Geographical Information - Net Sales by Segment (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Net sales by segment | $ 11,543,038 | $ 9,702,023 |
| ZERUST [Member] | ||
| Net sales by segment | 9,527,737 | 8,084,678 |
| NaturTec [Member] | ||
| Net sales by segment | $ 2,015,301 | $ 1,617,345 |
| X | ||||||||||
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 11 - Segment and Geographical Information - Cost of Goods Sold by Segment (Details) - USD ($) |
3 Months Ended | |||||
|---|---|---|---|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|||||
| Cost of goods sold | $ 7,888,470 | $ 6,612,766 | [1] | |||
| Precentage of product sales | [1] | |||||
| Direct Cost of Goods Sold [Member] | ZERUST [Member] | ||||||
| Cost of goods sold | $ 5,803,980 | $ 4,699,537 | [1] | |||
| Precentage of product sales | [1] | 60.90% | 58.10% | |||
| Direct Cost of Goods Sold [Member] | NaturTec [Member] | ||||||
| Cost of goods sold | $ 1,479,199 | $ 1,213,168 | [1] | |||
| Precentage of product sales | [1] | 73.40% | 75.00% | |||
| Indirect Cost of Goods Sold [Member] | ||||||
| Cost of goods sold | $ 605,291 | $ 700,061 | [1] | |||
| Precentage of product sales | [1] | |||||
| ||||||
| X | ||||||||||
- Definition Represents cost of goods sold as percentage of product sales. No definition available.
|
| X | ||||||||||
- Definition Total costs related to goods produced and sold during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 11 - Segment and Geographical Information - Net Sales by Geographic Location (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Net sales by segment | $ 11,543,038 | $ 9,702,023 |
| Inside the USA to Unaffiliated Customers [Member] | ||
| Net sales by segment | 6,256,205 | 5,268,999 |
| Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member] | ||
| Net sales by segment | 507,631 | 701,799 |
| Unaffiliated Customers Outside the USA [Member] | ||
| Net sales by segment | $ 4,779,202 | $ 3,731,225 |
| X | ||||||||||
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 11 - Segment and Geographical Information - Fees for Services Provided to Joint Ventures by Geographic Location as a Percentage of Total Fees (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Fees | $ 1,507,142 | $ 1,315,591 |
| Percentage of total fees | 100.00% | 100.00% |
| Fees | $ 1,507,142 | $ 1,315,591 |
| Percentage of total fees | 100.00% | 100.00% |
| GERMANY | ||
| Fees | $ 219,873 | $ 203,000 |
| Percentage of total fees | 14.60% | 15.40% |
| Fees | $ 219,873 | $ 203,000 |
| Percentage of total fees | 14.60% | 15.40% |
| POLAND | ||
| Fees | $ 206,076 | $ 149,204 |
| Percentage of total fees | 13.70% | 11.30% |
| Fees | $ 206,076 | $ 149,204 |
| Percentage of total fees | 13.70% | 11.30% |
| JAPAN | ||
| Fees | $ 174,045 | $ 146,037 |
| Percentage of total fees | 11.50% | 11.10% |
| Fees | $ 174,045 | $ 146,037 |
| Percentage of total fees | 11.50% | 11.10% |
| FRANCE | ||
| Fees | $ 139,641 | $ 97,673 |
| Percentage of total fees | 9.30% | 7.40% |
| Fees | $ 139,641 | $ 97,673 |
| Percentage of total fees | 9.30% | 7.40% |
| SWEDEN | ||
| Fees | $ 127,954 | $ 87,061 |
| Percentage of total fees | 8.50% | 6.60% |
| Fees | $ 127,954 | $ 87,061 |
| Percentage of total fees | 8.50% | 6.60% |
| UNITED KINGDOM | ||
| Fees | $ 111,775 | $ 86,131 |
| Percentage of total fees | 7.40% | 6.50% |
| Fees | $ 111,775 | $ 86,131 |
| Percentage of total fees | 7.40% | 6.50% |
| THAILAND | ||
| Fees | $ 102,531 | $ 147,455 |
| Percentage of total fees | 6.80% | 11.20% |
| Fees | $ 102,531 | $ 147,455 |
| Percentage of total fees | 6.80% | 11.20% |
| FINLAND | ||
| Fees | $ 89,627 | $ 76,336 |
| Percentage of total fees | 5.90% | 5.80% |
| Fees | $ 89,627 | $ 76,336 |
| Percentage of total fees | 5.90% | 5.80% |
| INDIA | ||
| Fees | $ 86,763 | $ 64,535 |
| Percentage of total fees | 5.80% | 4.90% |
| Fees | $ 86,763 | $ 64,535 |
| Percentage of total fees | 5.80% | 4.90% |
| CZECH REPUBLIC | ||
| Fees | $ 84,225 | $ 70,828 |
| Percentage of total fees | 5.60% | 5.40% |
| Fees | $ 84,225 | $ 70,828 |
| Percentage of total fees | 5.60% | 5.40% |
| KOREA, REPUBLIC OF | ||
| Fees | $ 83,488 | $ 105,378 |
| Percentage of total fees | 5.50% | 8.00% |
| Fees | $ 83,488 | $ 105,378 |
| Percentage of total fees | 5.50% | 8.00% |
| Other Countries [Member] | ||
| Fees | $ 81,144 | $ 81,953 |
| Percentage of total fees | 5.40% | 6.20% |
| Fees | $ 81,144 | $ 81,953 |
| Percentage of total fees | 5.40% | 6.20% |
| X | ||||||||||
- Definition Percentage of entity wide fees for services provided to joint ventures generated from geographic location. No definition available.
|
| X | ||||||||||
- Definition Total fees for services provided to joint ventures by geographic locations. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 11 - Segment and Geographical Information - Total Long-lived Assets by Geographic Distribution (Details) - USD ($) |
Nov. 30, 2017 |
Aug. 31, 2017 |
|---|---|---|
| Total long-lived assets | $ 7,235,301 | $ 7,359,662 |
| CHINA | ||
| Total long-lived assets | 207,094 | 228,458 |
| BRAZIL | ||
| Total long-lived assets | 50,784 | 54,646 |
| GERMANY | ||
| Total long-lived assets | 16,619 | 14,171 |
| INDIA | ||
| Total long-lived assets | 13,642 | 14,712 |
| UNITED STATES | ||
| Total long-lived assets | $ 6,947,162 | $ 7,047,675 |
| X | ||||||||||
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 11 - Segment and Geographical Information - Total Net Sales by Geographic Distribution (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Net sales by segment | $ 11,543,038 | $ 9,702,023 |
| CHINA | ||
| Net sales by segment | 2,911,643 | 1,546,810 |
| BRAZIL | ||
| Net sales by segment | 639,841 | 601,524 |
| INDIA | ||
| Net sales by segment | 495,539 | 331,610 |
| GERMANY | ||
| Net sales by segment | 48,771 | 118,259 |
| Other Countries [Member] | ||
| Net sales by segment | 683,407 | 1,133,022 |
| UNITED STATES | ||
| Net sales by segment | $ 6,763,837 | $ 5,970,798 |
| X | ||||||||||
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 12 - Commitments and Contingencies (Details Textual) - USD ($) |
3 Months Ended | ||
|---|---|---|---|
Nov. 30, 2017 |
Aug. 31, 2017 |
Nov. 30, 2016 |
|
| Accrued Bonuses | $ 318,000 | $ 98,000 | |
| Entity Wide Trade Joint Venture Receivables, Four Joint Ventures,Percentage | 93.60% | ||
| Entity Wide Trade Joint Venture Receivables, Three Joint Ventures,Percentage | 60.70% | ||
| Fiscal 2018 Bonus Plan [Member] | Executive Officer [Member] | |||
| Percentage of Individual Bonus Payout Determined by Actual Versus Targeted EBITOI Results | 75.00% | ||
| Percentage of Individuals Payout Determined Upon Achievement of Certain Pre-Established Individual Performance Objectives | 25.00% |
| X | ||||||||||
- Definition Percentage of total trade joint venture receivables accounted for by four joint ventures. No definition available.
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| X | ||||||||||
- Definition Percentage of total trade joint venture receivables accounted for by three joint ventures. No definition available.
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| X | ||||||||||
- Definition Percentage of individual's bonus payout determined based upon the Company's actual EBITOI for the fiscal year compared to pre-established target EBITOI for the fiscal year. No definition available.
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| X | ||||||||||
- Definition Percentage of individual's payout determined based upon achievement of certain pre-established individual performance objectives. No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 13 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value Recurring Basis (Details) - USD ($) |
Nov. 30, 2017 |
Aug. 31, 2017 |
|---|---|---|
| Available for sale securities | $ 3,770,241 | $ 3,766,984 |
| Fair Value, Inputs, Level 1 [Member] | ||
| Available for sale securities | 3,770,241 | 3,766,984 |
| Fair Value, Inputs, Level 2 [Member] | ||
| Available for sale securities | ||
| Fair Value, Inputs, Level 3 [Member] | ||
| Available for sale securities |
| X | ||||||||||
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 14 - Supplemental Cash Flow Information - Supplemental Disclosures of Cash Flow Information (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
|
| Cash paid for interest | $ 5,089 | $ 4,623 |
| Cash paid for income taxes | ||
| Dividends declared, not paid | $ 454,741 | |
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash paid, after deduction of cash paid for capitalized interest, for interest. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 15 - Subsequent Event (Details Textual) |
Jan. 01, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Subsequent Event [Member] | ||
| Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 35.00% |
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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