Income Taxes - After 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
Dollars
U.S. Federal Statutory Tax Rate	$ 8,426	$ (5,892)	$ (71)
State and local income tax, net of federal income tax effect	408	(2,711)	1,286
Other foreign jurisdictions		317	191
Global intangible low-taxed income	1,062	1,191	0
Other	191
R&D credit	(2,532)	(3,725)	(15,656)
Change in valuation allowance	(2,479)	2,133	13,913
Stock-based compensation	1,814	758	1,593
Executive compensation	2,461
Contingent consideration	(6,336)
Other	1,469
Changes in unrecognized tax benefits	(28)
Excess tax benefits	(2,806)	1,334	(213)
Total tax provision	$ 2,255	$ (110)	$ 2,292
Percent
U.S. Federal Statutory Tax Rate	21.00%
State and local income tax, net of federal income tax effect	1.02%
Global intangible low-taxed income	2.65%
Other	0.47%
R&D credit	(6.31%)
Change in valuation allowance	(6.18%)
Stock-based compensation	4.52%
Executive compensation	6.13%
Contingent consideration	(15.79%)
Other	3.66%
Changes in unrecognized tax benefits	(0.07%)
Excess tax benefits	(6.99%)
Total tax provision	5.62%
Switzerland
Dollars
Adjustments to deferred tax assets (NOL expiration)	$ 707
FX adjustment	(603)
Other	$ (118)
Percent
Adjustments to deferred tax assets (NOL expiration)	1.76%
FX adjustment	(1.50%)
Other	(0.29%)
Other foreign jurisdictions
Dollars
Other foreign jurisdictions	$ 396
Percent
Other foreign jurisdictions	0.99%
UNITED STATES
Dollars
Other	$ 223
Percent
Other	0.55%