Note 16 - Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Federal income tax at 21%	$ (2,860)	$ (2,828)
Changes in tax rates	0	(50)
Permanent differences	(144)	413
Foreign effective tax rate differential	(8)	66
Foreign withholding taxes, including penalties and interest	0	29
Valuation allowance on deferred tax assets	2,931	2,682
Excess tax deficiency for share-based payments under ASU 2016-09	13	66
Other	29	158
Income Tax Expense (Benefit), Total	$ (39)	$ 536