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Employee Benefit Plans (Summary of Financing Arrangements for Leveraged ESOP Debt) (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Issued June, 1991 [Member]      
Debt Disclosure [Abstract]      
Employee stock ownership plan (ESOP), debt structure, indirect loan, amount $ 46    
Employee stock ownership plan (ESOP), interest payments 10 $ 48 $ 53
Issued July, 2009 [Member]      
Debt Disclosure [Abstract]      
Employee stock ownership plan (ESOP), debt structure, indirect loan, amount 991    
Employee stock ownership plan (ESOP), interest payments 33 $ 31 $ 17
Issued February, 2016 [Member]      
Debt Disclosure [Abstract]      
Employee stock ownership plan (ESOP), debt structure, indirect loan, amount $ 5,000    
Employee stock ownership plan (ESOP), interest payments