Unaudited Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	APIC	Accumulated Deficit	Accumulated other comprehensive income	Treasury stock
Beginning balance (in shares) at Jan. 31, 2023		54,187,172
Beginning balance at Jan. 31, 2023	$ 287,819	$ 542	$ 926,957	$ (606,084)	$ 0	$ (33,596)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(37,531)			(37,531)
Stock-based compensation	14,950		14,950
Exercise of stock options and vesting of restricted stock units (in shares)		404,012
Exercise of stock options and vesting of restricted stock units	155	$ 4	151
Issuance of stock for share-settled bonus awards (in shares)		175,688
Issuance of stock for share-settled bonus awards	5,297	$ 2	5,295
Treasury stock from vesting of restricted stock units - satisfaction of tax withholdings	(7,079)					(7,079)
Ending balance (in shares) at Apr. 30, 2023		54,766,872
Ending balance at Apr. 30, 2023	$ 263,611	$ 548	947,353	(643,615)	0	(40,675)
Beginning balance (in shares) at Jan. 31, 2024	57,709,762	57,709,762
Beginning balance at Jan. 31, 2024	$ 251,449	$ 577	1,039,361	(742,969)	0	(45,520)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(19,722)			(19,722)
Other comprehensive income	1				1
Stock-based compensation	$ 14,491		14,491
Exercise of stock options and vesting of restricted stock units (in shares)	80,861	718,340
Exercise of stock options and vesting of restricted stock units	$ 346	$ 7	339
Issuance of stock for share-settled bonus awards (in shares)		283,354
Issuance of stock for share-settled bonus awards	$ 6,177	$ 3	6,174
Ending balance (in shares) at Apr. 30, 2024	58,711,456	58,711,456
Ending balance at Apr. 30, 2024	$ 252,742	$ 587	$ 1,060,365	$ (762,691)	$ 1	$ (45,520)