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
Apr. 30, 2024
Apr. 30, 2023
Stock-based compensation expense $ 7,153 $ 9,128
Cost of Sales [Member]    
Stock-based compensation expense 166 97
Research and Development Expense [Member]    
Stock-based compensation expense 1,290 2,012
Selling and Marketing Expense [Member]    
Stock-based compensation expense 1,256 1,682
General and Administrative Expense [Member]    
Stock-based compensation expense $ 4,441 $ 5,337