Stockholders' Equity and Equity Incentive Plans - Summary of Stock Option Activity Under Equity Incentive Plan (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 31, 2025 USD ($) $ / shares shares	Jan. 31, 2025 USD ($) $ / shares shares
Outstanding Stock Options
Beginning balance (in shares) | shares	2,394,918
Exercised (in shares) | shares	(471,770)
Canceled/forfeited/expired (in shares) | shares	(4,488)
Ending balance (in shares) | shares	1,918,660	2,394,918
Exercisable (in shares) | shares	1,918,660
Weighted- Average Exercise Price
Beginning balance (in dollars per share) | $ / shares	$ 9.02
Exercised (in dollars per share) | $ / shares	2.91
Canceled/forfeited/expired (in dollars per share) | $ / shares	94.87
Ending balance (in dollars per share) | $ / shares	10.33	$ 9.02
Weighted average exercise price, exercisable (in dollars per share) | $ / shares	$ 10.33
Weighted- Average Remaining Contractual Life (Years)
Outstanding	2 years 6 months	2 years 7 months 6 days
Exercisable	2 years 6 months
Aggregate Intrinsic Value
Outstanding | $	$ 124,000	$ 187,284
Exercised | $	36,642
Exercisable | $	$ 124,000