CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Mortgage loans held for sale, measured at fair value	$ 17,494	$ 26,943
Securities held to maturity, fair value	$ 11,995	$ 12,721
Common stock, par value	$ 0.0625	$ 0.0625
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	17,261,730	17,226,508
Common stock, shares outstanding	17,261,730	17,226,508