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Investment Securities (Details) - USD ($)
3 Months Ended 9 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Mar. 31, 2015
Details          
InvestmentSecuritiesGrossRealizedGainsFromSales $ 0 $ 158,000 $ 0 $ 158,000  
Investment securities available for sale pledged as collateral, amortized cost 10,500,000   10,500,000   $ 4,300,000
Investment securities available for sale pledged as collateral, fair value 10,400,000   10,400,000   4,300,000
Investment securities held to maturity pledged as collateral, amortized cost 24,000   24,000   27,000
Investment securities held to maturity pledged as collateral, fair value $ 24,000   $ 24,000   $ 27,000