Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Operations (Parenthetical)

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Consolidated Statements of Operations (Parenthetical) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Income Statement [Abstract]      
Income tax benefit (expense) from discontinued operations $ (88)us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 0us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 813us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation
Shares represented by options   0.6us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount