Note 7 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) $ in Thousands	9 Months Ended
Oct. 31, 2017 USD ($)
Balance	$ 112,686
Balance	109,229
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(8,631)
Other comprehensive income before reclassifications	1,029
Amounts reclassified from accumulated other comprehensive loss
Net current period other comprehensive income	1,029
Balance	$ (7,602)

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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

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-Publisher FASB
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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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