Income Taxes - Components of Income Tax Provision (Benefit) from Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Current:
State	$ 20	$ 5
Foreign	210	(1,882)
Total	230	(1,877)
Deferred:
Foreign	(182)	(141)
Total	(182)	(141)
Income tax provision (benefit)	$ 48	$ (2,018)