Income Taxes (Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Income Taxes Unrecognized Tax Benefits Details
Balance at beginning of year	$ 2,165us-gaap_UnrecognizedTaxBenefits	$ 3,024us-gaap_UnrecognizedTaxBenefits	$ 2,483us-gaap_UnrecognizedTaxBenefits
Gross increases - tax position in prior period	27	0	73
Gross decreases - tax position in prior period	0	(1,081)	0
Gross increases - tax positions related to the current year	228	222	468
Settlements	0	0	0
Lapse of statute of limitations	0	0	0
Balance at end of year	$ 2,420us-gaap_UnrecognizedTaxBenefits	$ 2,165us-gaap_UnrecognizedTaxBenefits	$ 3,024us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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-Name Accounting Standards Codification

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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