Note 3 - Inventories - Summary of Inventory (Details) - USD ($) |
Jun. 30, 2026 |
Mar. 31, 2026 |
|---|---|---|
| Raw materials | $ 415,172 | $ 363,619 |
| Finished goods | 99,505 | 56,815 |
| Totals | 514,677 | 420,434 |
| Current [Member] | ||
| Raw materials | 258,562 | 205,379 |
| Finished goods | 88,509 | 45,245 |
| Totals | 347,071 | 250,624 |
| Long Term [Member | ||
| Raw materials | 156,610 | 158,240 |
| Finished goods | 10,996 | 11,570 |
| Totals | $ 167,606 | $ 169,810 |
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- 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/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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