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Note 15 - Income Taxes (Tables) | 12 Months Ended
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Aug. 31, 2025
Notes Tables |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Fiscal Year Ended August 31, |
|  | 2025 |  |  | 2024 |
Current: |  |  |  |  |  |  |  |
Federal |  | $ | — |  |  | $ | — |
State |  |  | 69,000 |  |  |  | 48,000 |
Foreign |  |  | 1,823,000 |  |  |  | 1,601,000 |
|  |  | 1,892,000 |  |  |  | 1,649,000 |
Deferred: |  |  |  |  |  |  |  |
Federal |  |  | — |  |  |  | — |
State |  |  | — |  |  |  | — |
Foreign |  |  | 153,002 |  |  |  | (323,203 | )
|  |  | 153,002 |  |  |  | (323,203 | )
|  | $ | 2,045,002 |  |  | $ | 1,325,797 |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Fiscal Year Ended August 31, |
|  | 2025 |  |  | 2024 |
Tax computed at statutory rates |  | $ | 647,000 |  |  | $ | 1,627,000 |
State income tax, net of federal benefit |  |  | 120,000 |  |  |  | 21,000 |
Tax effect on equity in income of international joint ventures |  |  | (742,000 | ) |  |  | (887,000 | )
Tax effect of foreign operations |  |  | 875,000 |  |  |  | 371,000 |
Deemed repatriation |  |  | 26,000 |  |  |  | 4,000 |
Foreign tax credit |  |  | — |  |  |  | (321,000 | )
Research and development credit |  |  | (138,000 | ) |  |  | (512,000 | )
Valuation allowance |  |  | 1,363,000 |  |  |  | 1,066,000 |
Stock based compensation |  |  | 77,002 |  |  |  | 175,000 |
Non-controlling interest |  |  | (62,000 | ) |  |  | (71,000 | )
Prior year true-up |  |  | (112,000 | ) |  |  | (146,000 | )
Other |  |  | (9,000 | ) |  |  | (1,203 | )
|  | $ | 2,045,002 |  |  | $ | 1,325,797 |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | August 31, |
|  | 2025 |  |  | 2024 |
Stock-based compensation |  | $ | 797,000 |  |  | $ | 637,100 |
Foreign tax credit carryforward |  |  | 2,814,400 |  |  |  | 3,844,800 |
Capitalized research and experimentation |  |  | 2,472,400 |  |  |  | 2,037,800 |
Other credit and loss carryforward |  |  | 6,757,900 |  |  |  | 5,974,200 |
Capital loss carryforward |  |  | 129,900 |  |  |  | — |
Interest expense limitation |  |  | 71,300 |  |  |  | — |
Other |  |  | 922,400 |  |  |  | 965,368 |
Total deferred tax assets |  |  | 13,965,300 |  |  |  | 13,459,268 |
Valuation allowance |  |  | (13,153,200 | ) |  |  | (12,694,800 | )
Total deferred tax assets after valuation allowance |  |  | 812,100 |  |  |  | 764,468 |
Right-of-use asset |  |  | (51,900 | ) |  |  | (64,700 | )
Intangible assets |  |  | (1,457,700 | ) |  |  | (1,564,200 | )
Unremitted foreign earnings |  |  | (234,600 | ) |  |  | (34,800 | )
Other |  |  | (77,491 | ) |  |  | (61,100 | )
Total deferred tax liabilities |  |  | (1,821,691 | ) |  |  | (1,724,800 | )
Net deferred tax liabilities |  | $ | (1,009,591 | ) |  | $ | (960,332 | )
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
|  | Fiscal Year Ended August 31, |
|  | 2025 |  |  | 2024 |
Gross unrecognized tax benefits – beginning balance |  | $ | 399,300 |  |  | $ | 361,200 |
Gross (decreases) increases – prior period tax positions |  |  | (17,400 | ) |  |  | (5,400 | )
Gross increases – current period tax positions |  |  | 40,000 |  |  |  | 43,500 |
Gross unrecognized tax benefits – ending balance |  | $ | 421,900 |  |  | $ | 399,300 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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