Note 12 - Stock-based Compensation - Summary of Stock-based Compensation (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 30, 2023 |
Apr. 30, 2022 |
|
| Stock-based compensation expense | $ 9,128 | $ 6,898 |
| Cost of Sales [Member] | ||
| Stock-based compensation expense | 97 | 1 |
| Research and Development Expense [Member] | ||
| Stock-based compensation expense | 2,012 | 686 |
| Selling and Marketing Expense [Member] | ||
| Stock-based compensation expense | 1,682 | 1,259 |
| General and Administrative Expense [Member] | ||
| Stock-based compensation expense | $ 5,337 | $ 4,952 |
| 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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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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