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Securities - Schedule of Amortized Cost and Fair Value of Investments (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Securities available for sale:    
Amortized Cost $ 292,046 $ 346,733
Unrealized Gains 4,066 3,899
Unrealized Losses 3,545 4,130
Securities available for sale 292,567 346,502 [1]
Federal agencies and GSEs    
Securities available for sale:    
Amortized Cost 91,940 106,379
Unrealized Gains 39 62
Unrealized Losses 2,208 2,387
Securities available for sale 89,771 104,054
Mortgage-backed and CMOs    
Securities available for sale:    
Amortized Cost 75,769 79,917
Unrealized Gains 473 514
Unrealized Losses 850 938
Securities available for sale 75,392 79,493
State and municipal    
Securities available for sale:    
Amortized Cost 113,906 145,757
Unrealized Gains 2,560 2,540
Unrealized Losses 478 782
Securities available for sale 115,988 147,515
Corporate    
Securities available for sale:    
Amortized Cost 9,143 13,392
Unrealized Gains 239 123
Unrealized Losses 9 23
Securities available for sale 9,373 13,492
Equity securities    
Securities available for sale:    
Amortized Cost 1,288 1,288
Unrealized Gains 755 660
Unrealized Losses 0 0
Securities available for sale $ 2,043 $ 1,948
[1] Derived from audited consolidated financial statements.