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Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Net Income	$ 9,583us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 9,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 8,450us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Other comprehensive loss, net of tax:
Foreign currency translation	(234)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
Total comprehensive income	$ 9,349us-gaap_ComprehensiveIncomeNetOfTax	$ 9,000us-gaap_ComprehensiveIncomeNetOfTax	$ 8,450us-gaap_ComprehensiveIncomeNetOfTax

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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