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 9 Months Ended
Oct. 31, 2024
Oct. 31, 2023
Oct. 31, 2024
Oct. 31, 2023
Stock-based compensation expense $ 3,646 $ 7,963 $ 9,985 $ 22,917
Cost of Sales [Member]        
Stock-based compensation expense 149 128 447 463
Research and Development Expense [Member]        
Stock-based compensation expense 1,268 1,569 3,472 5,325
Selling and Marketing Expense [Member]        
Stock-based compensation expense 898 1,421 2,951 2,436
General and Administrative Expense [Member]        
Stock-based compensation expense $ 1,331 $ 4,845 $ 3,115 $ 14,693