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Note 7 - Inventories (Tables) | 12 Months Ended
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Jan. 31, 2022
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | As of January 31, |
|  | 2022 |  |  | 2021 |
Raw materials |  | $ | 8,511 |  |  | $ | 6,905 |
Finished goods |  |  | 3,806 |  |  |  | 3,466 |
Work in progress |  |  | 3,567 |  |  |  | 2,445 |
Cost of inventories |  |  | 15,884 |  |  |  | 12,816 |
Less allowance for obsolescence |  |  | (1,878 | ) |  |  | (1,363 | )
Net inventories |  | $ | 14,006 |  |  | $ | 11,453 |

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