Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Income Tax [Line Items]
Net deferred tax asset, Increase in valuation allowance	$ 3,000,000.0	$ 600,000
Net operating loss carryforwards, expired	2030
Deferred tax assets correction		7,400,000
Unrecognized tax benefits	$ 8,090,000	6,642,000	$ 6,017,000
Interest expense or penalties related to unrecognized tax benefits	$ 0	$ 0	$ 0
Research and Development
Income Tax [Line Items]
Federal tax credit, expired	2030
Federal
Income Tax [Line Items]
Net operating loss carryforwards	$ 125,100,000
Federal | Research and Development
Income Tax [Line Items]
Tax credit carryforwards	10,500,000
State
Income Tax [Line Items]
Net operating loss carryforwards	94,800,000
State | Research and Development
Income Tax [Line Items]
Tax credit carryforwards	$ 9,800,000