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Federal Home Loan Bank Advances (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Federal Home Loan Bank Advances [Abstract]    
Federal Home Loan Bank Advances, long term $ 0 $ 0
Federal Home Loan Bank Advances, short term 0 $ 0
Borrowing capacity of advances secured by FHLB stock and other securities 300,000  
Collateral on borrowing lines 588,300,000  
Borrowing capacity $ 500,400,000