Consolidated Balance Sheets Parenthetical - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Investment securities held-to-maturity, fair value	$ 999	$ 5,100
Stockholders' Equity
Common stock, par value	$ 2.00	$ 2.00
Common stock, shares authorized	7,500,000	7,500,000
Common stock, shares issued	4,936,652	4,931,796
Treasury stock, shares	474,517	474,619