Note 3 - Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2015
Federal	$ 437	$ (1,656)	$ 174
State	30	26	109
Foreign	3,894	2,591	3,010
Subtotal	4,361	961	3,293
Federal	11,564	(956)	(786)
State	3,610	303	229
Foreign	(348)	63	(348)
Subtotal	14,826	(590)	(905)
Equity adjustment	89	1,253	251
Total	$ 19,276	$ 1,624	$ 2,639