Note 12 - Segment and Geographic Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
May 31, 2026 |
May 31, 2025 |
May 31, 2026 |
May 31, 2025 |
|
| Gross profit | $ 8,143,164 | $ 8,259,440 | $ 24,384,676 | $ 23,217,977 |
| Indirect cost of goods sold | (16,072,498) | (13,249,123) | (45,136,589) | (38,701,045) |
| Total joint venture operations | 2,550,960 | 2,272,912 | 6,868,902 | 6,377,617 |
| Selling expenses | (4,647,548) | (4,593,226) | (13,732,822) | (13,071,122) |
| General and administrative expenses | (4,324,275) | (3,933,696) | (12,085,935) | (11,113,008) |
| Research and development expenses | (1,206,971) | (1,138,243) | (3,603,085) | (3,770,539) |
| Interest income | 64,089 | 37,821 | 166,899 | 273,544 |
| Interest expense | (203,872) | (162,096) | (600,489) | (421,471) |
| Other income | 0 | 0 | 0 | 1,139,756 |
| INCOME BEFORE INCOME TAX EXPENSE | 375,547 | 742,912 | 1,398,146 | 2,632,754 |
| Indirect Cost of Goods Sold [Member] | ||||
| Indirect cost of goods sold | (1,054,561) | (572,626) | (2,581,899) | (2,322,628) |
| Operating Segments [Member] | ||||
| Gross profit | 9,197,725 | 8,832,066 | 26,966,575 | 25,540,605 |
| ZERUST [Member] | Operating Segments [Member] | ||||
| Gross profit | 7,312,316 | 6,609,307 | 21,466,550 | 19,422,244 |
| NaturTec [Member] | Operating Segments [Member] | ||||
| Gross profit | $ 1,885,409 | $ 2,222,759 | $ 5,500,025 | $ 6,118,361 |
| X | ||||||||||
- Definition Represents the amount of income from joint venture operations recognized during the period. No definition available.
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| X | ||||||||||
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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/disclosureRef
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| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of interest expense classified as nonoperating. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of revenue and income classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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/exampleRef
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| X | ||||||||||
- Details
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- Details
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