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Investment Securities Available-for-Sale (Details Narrative) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]      
Federal home loan bank stock and federal reserve bank stock $ 30,980 $ 19,920 $ 21,600
Debt securities percentage 99.90%    
Debt securities weighted average duration 3 years 6 months    
Available-for-sale securities, gross realized gains $ 795 1,300  
Available-for-sale securities, gross realized losses 254 202  
Proceeds from sale of available-for-sale securities 70,100 $ 94,200  
Available-for-sale securities pledged as collateral $ 459,900