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Note 8 - Shareholders' Equity (Tables) | 6 Months Ended
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Jul. 31, 2025
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Three Months Ended July 31, |
|  | 2025 |  |  | 2024 |
|  | Before Tax |  |  | Income Tax |  |  | Net |  |  | Before Tax |  |  | Income Tax |  |  | Net |
Balance as of beginning-of-period |  | $ | (13,945 | ) |  | $ | — |  |  | $ | (13,945 | ) |  | $ | (15,937 | ) |  | $ | — |  |  | $ | (15,937 | )
Translation adjustment |  |  | (27 | ) |  |  | — |  |  |  | (27 | ) |  |  | 64 |  |  |  | — |  |  |  | 64 |
Balance as of end-of-period |  | $ | (13,972 | ) |  | $ | — |  |  | $ | (13,972 | ) |  | $ | (15,873 | ) |  | $ | — |  |  | $ | (15,873 | )
|  | Six Months Ended July 31, |
|  | 2025 |  |  | 2024 |
|  | Before Tax |  |  | Income Tax |  |  | Net |  |  | Before Tax |  |  | Income Tax |  |  | Net |
Balance as of beginning-of-period |  | $ | (16,918 | ) |  | $ | — |  |  | $ | (16,918 | ) |  | $ | (13,050 | ) |  | $ | — |  |  | $ | (13,050 | )
Translation adjustment |  |  | 2,946 |  |  |  | — |  |  |  | 2,946 |  |  |  | (2,823 | ) |  |  | — |  |  |  | (2,823 | )
Balance as of end-of-period |  | $ | (13,972 | ) |  | $ | — |  |  | $ | (13,972 | ) |  | $ | (15,873 | ) |  | $ | — |  |  | $ | (15,873 | )

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