Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Securities held-to-maturity	$ 0	$ 54,470
Preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares authorized	20,000	20,000
Preferred stock, shares issued	9,283	9,283
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	8,134,577	8,112,998
Common stock, shares outstanding	8,083,500	8,061,921
Treasury stock, shares	51,077	51,077