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Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands | Jan. 31, 2022 | Jan. 31, 2021
--- | --- | ---
Cost | $ 45,471 | $ 42,422
Accumulated amortization | 34,654 | 30,333
Net | 10,817 | 12,089
Computer Equipment [Member] |  |
Cost | 40,937 | 37,469
Accumulated amortization | 31,660 | 28,123
Furniture and Fixtures [Member] |  |
Cost | 1,553 | 1,494
Accumulated amortization | 1,257 | 1,081
Leasehold Improvements [Member] |  |
Cost | 822 | 807
Accumulated amortization | 531 | 401
Equipment Installed With Customers [Member] |  |
Cost | 1,635 | 1,654
Accumulated amortization | 1,206 | 728
Asset under Construction [Member] |  |
Cost | $ 524 | $ 998

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