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Borrowed Funds (Narrative)(Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Borrowed Funds [Abstract]  
Repurchase agreements secured by available for sale securities $ 56.4us-gaap_AvailableForSaleSecuritiesPledgedAsCollateral
FHLB advances secured by loans receivable 202.9us-gaap_LoansPledgedAsCollateral
Cash collateral $ 0.9us-gaap_CashCollateralForBorrowedSecurities
Minimum fair value percentage pleadged against account balances 102.00%func_MinimumFairValuePercentagePleadgedAgainstAccountBalances