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Fair Value (Fair Value On A Nonrecurring Basis) (Tables) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Sep. 30, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other real estate owned, Fair Value Disclosure $ 269 $ 3,028
Impaired Collateral-dependent Loans 12,162 13,019
Fair Value, Inputs, Level 3 [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other real estate owned, Fair Value Disclosure 269 3,028
Impaired Collateral-dependent Loans 12,162 13,019
Gains (Losses) from Fair Value Changes for the Three Months Ended [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other real estate owned, Fair Value Disclosure (119) (325)
Impaired Collateral-dependent Loans 1,320 (381)
Gains (Losses) from Fair Value Changes for the Six Months Ended [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other real estate owned, Fair Value Disclosure (863) (550)
Impaired Collateral-dependent Loans $ 2,067 $ (1,821)