Income Taxes - Before Adoption of ASU 2023-09 Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Income Tax Disclosure [Abstract]
U.S. federal tax benefit at statutory rate	$ (8,426)	$ 5,892	$ 71
State taxes, net of federal benefit	(408)	2,711	(1,286)
Foreign tax rate differential		(317)	(191)
Non-deductible expenses		(2,209)	(1,902)
R&D credit carryforward	2,532	3,725	15,656
Changes in valuation allowance	2,479	(2,133)	(13,913)
Rate change		(1)	386
Stock-based compensation	(1,814)	(758)	(1,593)
Net excess tax (shortfalls) benefits from stock-based compensation	2,806	(1,334)	213
Return to provision adjustment		(56)	(25)
Global intangible low-taxed income	(1,062)	(1,191)	0
Acquisition-related costs		(3,532)	0
Other, net		(687)	292
Total (provision for) benefit from income taxes	$ (2,255)	$ 110	$ (2,292)