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Note 9 - Intangible Assets (Tables) | 12 Months Ended
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Jan. 31, 2021
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  |  | January 31, |  |  |  | January 31, |
|  |  | 2021 |  |  |  | 2020 |
Cost |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 240,479 |  |  |  | 226,514 |
Existing technology |  |  | 295,161 |  |  |  | 262,614 |
Trade names |  |  | 8,844 |  |  |  | 8,582 |
Non-compete covenants |  |  | 10,939 |  |  |  | 9,985 |
|  |  | 555,423 |  |  |  | 507,695 |
Accumulated amortization |  |  |  |  |  |  |  |
Customer agreements and relationships |  |  | 119,361 |  |  |  | 98,241 |
Existing technology |  |  | 183,539 |  |  |  | 142,757 |
Trade names |  |  | 5,996 |  |  |  | 5,124 |
Non-compete covenants |  |  | 6,535 |  |  |  | 4,617 |
|  |  | 315,431 |  |  |  | 250,739 |
Net |  |  | 239,992 |  |  |  | 256,956 |

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