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Warranty (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2023
Warranty claim activity |  |  |  |
Beginning balance | $ 500 | $ 600 | $ 500 | $ 600
Provision | 60 | 54 | 111 | 145
Costs incurred | (60) | (54) | (111) | (145)
Ending balance | $ 500 | $ 600 | $ 500 | $ 600
Maximum |  |  |  |
Warranty [Line Items] |  |  |  |
Product warranty period |  |  | 10 years |

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