INVENTORIES (Details) - Schedule of Inventory - USD ($) |
May 31, 2020 |
Feb. 29, 2020 |
|---|---|---|
| Inventory Current [Member] | ||
| Current: | ||
| Book inventory | $ 27,479,000 | $ 30,346,900 |
| Inventory valuation allowance | (316,600) | (259,600) |
| Inventories net | 27,162,400 | 30,087,300 |
| Inventory, Noncurrent [Member] | ||
| Current: | ||
| Book inventory | 1,021,400 | 1,226,500 |
| Inventory valuation allowance | (240,600) | (209,800) |
| Inventories net | $ 780,800 | $ 1,016,700 |