Note 3 - Inventories - Summary of Inventory (Details) - USD ($) |
Jun. 30, 2022 |
Mar. 31, 2022 |
---|---|---|
Raw materials | $ 546,192 | $ 421,579 |
Finished goods | 66,047 | 50,227 |
Totals | 612,239 | 471,806 |
Current [Member] | ||
Raw materials | 364,776 | 240,163 |
Finished goods | 63,733 | 47,913 |
Totals | 428,509 | 288,076 |
Long Term [Member | ||
Raw materials | 181,416 | 181,416 |
Finished goods | 2,314 | 2,314 |
Totals | $ 183,730 | $ 183,730 |