Note 7 - Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Tax expense at federal statutory rate	$ (1,633)	$ 1,057
State expense, net of federal income tax effect	(97)	147
Deferred balance adjustment	(5)	(212)
Domestic return to provision	(485)	(172)
Global Intangible Low Tax Income Inclusion		703
Nontaxable Paycheck Protection Program Loan Forgiveness Proceeds	(662)
Permanent differences other	282	(5)
Differences in foreign tax rate	527	(79)
Foreign rate change	18	(63)
Deferred tax on unremitted earnings	(176)	183
Foreign withholding taxes	209	274
All other, net expense	(101)	(35)
Total income tax expense/(benefit)	(133)	1,459
Domestic Tax Authority [Member]
Valuation allowance	1,807	(337)
State and Local Jurisdiction [Member]
Valuation allowance	$ 183	$ (2)