Note 8 - Income Taxes - Components of Income Tax Expense/(Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Current
Federal	$ 34	$ 48
Foreign	1,455	1,695
State and other	181	196
Total current income tax expense	1,670	1,939
Deferred
Federal
Foreign	(211)	211
State and other
Total deferred income tax expense/(benefit)	(211)	211
Total income tax expense	$ 1,459	$ 2,150