Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Stock-based Compensation - Summary of Stock-based Compensation (Details)

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Note 9 - Stock-based Compensation - Summary of Stock-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2024
Jul. 31, 2023
Jul. 31, 2024
Jul. 31, 2023
Stock-based compensation expense $ (814) $ 5,827 $ 6,339 $ 14,955
Cost of Sales [Member]        
Stock-based compensation expense 132 238 298 335
Research and Development Expense [Member]        
Stock-based compensation expense 914 1,744 2,204 3,756
Selling and Marketing Expense [Member]        
Stock-based compensation expense 797 (667) 2,053 1,015
General and Administrative Expense [Member]        
Stock-based compensation expense $ (2,657) $ 4,512 $ 1,784 $ 9,849