Note 14 - Supplemental Information of Cash Flows - Schedule of Cash Flows (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
May 31, 2026 |
May 31, 2025 |
|
| Preferred dividend accrual | $ 0 | $ 1,610 |
| Equipment purchases in accounts payable | 89,740 | 0 |
| Equipment purchases transferred to inventory | 235,028 | 0 |
| Interest paid | 912,896 | 1,029,076 |
| Income taxes paid | $ 428,100 | $ 149,393 |
| X | ||||||||||
- Definition Future cash outflow to pay for purchases of equipment that have occurred. No definition available.
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| X | ||||||||||
- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| 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/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. 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/disclosureRef
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