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Note 14 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Balance	$ 97,821	$ 84,678
Balance	99,361	97,821
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(1,760)	(1,151)
Unrealized losses arising during the year	2,324	(609)
Balance	564	(1,760)
AOCI Attributable to Parent [Member]
Balance	(1,760)	(1,151)
Unrealized losses arising during the year	2,324	(609)
Balance	$ 564	$ (1,760)

X

- Definition

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

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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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