Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Amount
Tax benefit at U.S. federal statutory rate	$ (12,092)	$ (16,952)	$ (15,606)
State income taxes, net of federal tax benefit	(384)	(3,188)	(1,587)
Foreign tax differential		340	183
Non-deductible expenses	280	2,451	1,077
Stock-based compensation	4,589	11,370	14,272
Officer compensation	1,593
Research and development credits	(1,643)	(1,386)	(2,777)
Changes in unrecognized tax benefits	411
Change in valuation allowance	7,875	5,757	6,411
Foreign withholding taxes		220	245
Other	(88)	2,598	(961)
Provision for income taxes	$ 1,759	$ 1,210	$ 1,257
Percent
Tax benefit at U.S. federal statutory rate	21.00%
State income taxes, net of federal tax benefit	1.00%
Non-deductible expenses	0.00%
Stock-based compensation	(8.00%)
Officer compensation	(3.00%)
Research and development credits	3.00%
Changes in unrecognized tax benefits	(1.00%)
Change in valuation allowance	(14.00%)
Other	0.00%
Provision for income taxes	(3.00%)
Japan
Amount
Foreign tax differential	$ 778
Percent
Foreign taxes	(1.00%)
Other jurisdictions
Amount
Foreign tax differential	$ 441
Percent
Foreign taxes	(1.00%)