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Loans Receivable (Troubled debt restructurings, Rolling Twelve Months) (Details)
$ in Thousands
12 Months Ended
Mar. 31, 2016
USD ($)
number
Mar. 31, 2015
USD ($)
number
Mortgage Loan [Member]    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | number 31 60
Recored Investment | $ $ 3,732 $ 6,963
Consumer Loan [Member]    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | number 3 6
Recored Investment | $ $ 77 $ 81
Auto Loan [Member]    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | number   1
Recored Investment | $ $ 17 $ 0