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Securities - Narrative (Details)
9 Months Ended
Sep. 30, 2015
Investment
Investments, Debt and Equity Securities [Abstract]  
Par value of restricted stock out of outstanding capital required by FRB 6.00%
Percentage of restricted stock outstanding capital paid to FRB 50.00%
Percentage restricted stock outstanding capital subject to call 50.00%
Par value of restricted stock out of outstanding borrowings required by FHLB 4.50%
Federal agencies and GSEs [Member]  
Schedule of Available-for-sale Securities [Line Items]  
Number of securities with unrealized losses 4
Mortgage-backed and CMOs [Member]  
Schedule of Available-for-sale Securities [Line Items]  
Number of securities with unrealized losses 13
State and municipal [Member]  
Schedule of Available-for-sale Securities [Line Items]  
Number of securities with unrealized losses 11
Corporate securities [Member]  
Schedule of Available-for-sale Securities [Line Items]  
Number of securities with unrealized losses 3