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Consolidated Balance Sheets (Parenthetical)
$ in Thousands
Dec. 31, 2016
USD ($)
$ / shares
shares
Nov. 14, 2016
Dec. 31, 2015
USD ($)
$ / shares
shares
Statement of Financial Position [Abstract]      
Investment securities, held to maturity fair value | $ $ 194,086   $ 193,703
Allowance for loan losses | $ $ 14,837   $ 14,534
Preferred stock, par value | $ / shares $ 0.01   $ 0.01
Preferred stock, liquidation value | $ / shares $ 1,000   $ 1,000
Preferred stock, shares authorized 1,000,000   1,000,000
Preferred stock, shares issued 0   12,500
Common stock, par value | $ / shares  
Common stock, shares authorized [1] 66,000,000   66,000,000
Common stock, shares issued [1] 22,192,530   17,992,986
Common stock, shares outstanding [1] 22,171,596   17,909,831
Stock split ratio   1.5  
[1] Adjusted for 3:2 stock split on November 14, 2016.