Income Taxes - Additional Information (Detail) - USD ($)	Jan. 31, 2021	Jan. 31, 2020
Income Tax Disclosure [Abstract]
Deferred tax liability associated with the undistributed foreign earnings	$ 0
Deferred tax assets, stock based compensation	718,000	$ 650,000
Valuation allowance, deferred tax assets	20,156,000	16,597,000
Tax credit carry forwards	139,000
Unrecognized tax benefits	$ 0	$ 0