Note 7 - Income Taxes - Components of Income Tax Expense/(Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Federal	$ 18	$ 34
Foreign	413	1,455
State and other	105	181
Total current income tax expense	536	1,670
Federal
Foreign	(669)	(211)
State and other
Total deferred income tax expense/(benefit)	(669)	(211)
Total income tax expense/(benefit)	$ (133)	$ 1,459