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Allowance for Loan and Lease Losses (Troubled debt restructurings, Rolling Twelve Months) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2014
number
Mar. 31, 2013
number
Mortgages [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Contracts 19 32
Recored Investment $ 2,592 $ 4,295
Commercial Loan [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Contracts 0 1
Recored Investment 0 18
Consumer Loan [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Contracts 1 0
Recored Investment $ 11 $ 0