Note 8 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) $ in Thousands	6 Months Ended
Jul. 31, 2020 USD ($)
Balance	$ 116,065
Balance	112,202
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(8,345)
Other comprehensive loss before reclassifications	(1,048)
Amounts reclassified from accumulated other comprehensive loss	0
Net current period other comprehensive loss	(1,048)
Balance	$ (9,393)

Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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