3. Inventory: Schedule of Inventory (Details) - USD ($) |
May 31, 2025 |
May 31, 2024 |
|---|---|---|
| Inventory, Gross | $ 8,136,321 | $ 7,571,052 |
| Less allowance for obsolescence | 23,000 | 59,000 |
| Inventory, Net | 8,113,321 | 7,512,052 |
| Raw Materials | ||
| Inventory, Gross | 627,616 | 886,947 |
| Work-in-process | ||
| Inventory, Gross | 7,222,613 | 6,412,497 |
| Finished goods | ||
| Inventory, Gross | $ 286,092 | $ 271,608 |
| X | ||||||||||
- Definition Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| 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 after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|