10. Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) |
May 31, 2026 |
May 31, 2025 |
|---|---|---|
| Deferred tax assets | ||
| Allowance for doubtful receivables | $ 41,000 | $ 118,500 |
| Tax inventory adjustment | 67,200 | 52,600 |
| Allowance for obsolete inventory | 145,900 | 165,500 |
| Accrued professional fees | 20,100 | 0 |
| Accrued vacation | 179,000 | 169,600 |
| Warranty reserve | 100,100 | 112,500 |
| R&D capitalization | 1,450,500 | 2,111,200 |
| Stock options issued for services | 537,700 | 117,700 |
| Deferred Tax Assets, Gross | 2,541,500 | 2,847,600 |
| Deferred tax liabilities | ||
| Excess tax depreciation | (1,268,500) | (1,249,600) |
| Net deferred tax assets | $ 1,273,000 | $ 1,598,000 |
| X | ||||||||||
- Definition Represents the monetary amount of Accrued professional fees, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of Accrued vacation, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of Allowance for doubtful receivables, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of Allowance for obsolete inventory, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of Excess tax depreciation, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of R&D capitalization, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of Stock options issued for services, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of Tax inventory adjustment, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Represents the monetary amount of Warranty reserve, as of the indicated date. No definition available.
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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