Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Current:
State	$ 82	$ 62	$ 52
Foreign	1,011	398	185
Total current	1,093	460	237
Deferred:
Foreign	(89)	0	0
Total deferred	(89)	0	0
Total provision for income taxes	$ 1,004	$ 460	$ 237