Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (145,000)	$ 342,000
Pre-tax net loss	3,846,000	6,085,000
Deferred tax liability associated with the undistributed foreign earnings	0
Tax expense or benefit related to uncertain tax positions	$ 0	$ 0