Note 9 - Stock-based Compensation - Summary of Stock-based Compensation (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 30, 2025 |
Apr. 30, 2024 |
|
| Stock-based compensation expense | $ 4,081 | $ 7,153 |
| Cost of Sales [Member] | ||
| Stock-based compensation expense | 117 | 166 |
| Research and Development Expense [Member] | ||
| Stock-based compensation expense | 1,022 | 1,290 |
| Selling and Marketing Expense [Member] | ||
| Stock-based compensation expense | 805 | 1,256 |
| General and Administrative Expense [Member] | ||
| Stock-based compensation expense | $ 2,137 | $ 4,441 |
| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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- Details
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- Details
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- Details
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