Income Taxes - Reconciliation of Income Taxes by Jurisdiction (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
(Loss) income from continuing operations before income taxes is attributable to the following jurisdictions:
Domestic	$ (8,851)	$ (7,550)
Foreign	(4,615)	1,360
Loss from continuing operations before income taxes	(13,466)	(6,190)
Current:
Domestic	22	27
Foreign	515	58
Total	537	85
Deferred:
Domestic	0	0
Foreign	(1)	268
Total	(1)	268
Income tax expense	$ 536	$ 353