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Note 8 - Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Tax benefit at federal statutory rate	$ 340	$ (3,459)
Federal rate change		2,243
State benefit, net of federal income tax effect	145	(440)
Excess income tax on share-based compensation		(183)
Domestic return to provision	2,617
Global Intangible Low Tax Income Inclusion	438
Permanent differences other	126	162
Differences in foreign tax rate	334	732
Tax effects of Canadian acquisition amalgamation		(364)
Deferred tax on unremitted earnings	413	1,880
Foreign withholding taxes	252	245
All other, net expense	21	(140)
Total income tax expense/(benefit)	2,150	(233)
Domestic Tax Authority [Member]
Valuation allowance	(2,612)	(1,206)
State and Local Jurisdiction [Member]
Valuation allowance	$ 76	$ 297

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