Note 4 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2019	Jan. 31, 2018
Unrecognized tax benefits at beginning of the year	$ 1,662	$ 1,743
Decreases as a result of tax positions taken in a prior period	(26)	(115)
Increases as a result of tax positions taken in the prior period		58
Reduction as a result of a lapse of the statute of limitations	(44)	(24)
Decreases as a result of settlements with taxing authorities	(424)
Unrecognized tax benefit at end of year	$ 1,168	$ 1,662

Amount of unrecognized tax benefits.

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