Note 16 - Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Federal income tax at 21%	$ (1,414)	$ (2,860)
Changes in tax rates	0	0
Permanent differences	363	(144)
Foreign effective tax rate differential	(53)	(8)
Valuation allowance on deferred tax assets	1,690	2,931
Excess tax deficiency for share-based payments under ASU 2016-09	133	13
Other	(20)	29
Income Tax Expense (Benefit)	$ 699	$ (39)