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Equity Plans and Stock-based Compensation - Schedule of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Apr. 30, 2025
Jan. 31, 2025
Number of Stock Option Awards    
Outstanding at the beginning of period (in shares) 2,705,924  
Options exercised (in shares) (61,871)  
Options cancelled (in shares) (131,798)  
Outstanding at the end of period (in shares) 2,512,255 2,705,924
Options vested and expected to vest at the end of period (in shares) 2,512,255  
Exercisable at the end of period (in shares) 2,512,255  
Weighted Average Exercise Price    
Outstanding at the beginning of period (USD per share) $ 0.77  
Options exercised (USD per share) 0.64  
Options cancelled (USD per share) 0.74  
Outstanding at the end of period (USD per share) 0.77 $ 0.77
Options vested and expected to vest at the end of period (USD per share) 0.77  
Exercisable at the end of period (USD per share) $ 0.77  
Weighted Average Remaining Contractual term (in years)    
Outstanding (in years) 3 years 9 months 18 days 3 years 10 months 24 days
Options vested and expected to vest (in years) 3 years 9 months 18 days  
Exercisable (in years) 3 years 9 months 18 days  
Aggregate Intrinsic Value (in thousands)    
Outstanding $ 17 $ 528
Options vested and expected to vest 17  
Exercisable $ 17