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Earnings Per Share (Details)
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Details      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 234,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 439,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 419,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount