Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for loan losses	$ 5,767	$ 5,545
Common stock, par value (in dollars per share)	$ 1.25	$ 1.25
Common stock authorized (in shares)	12,000,000	12,000,000
Common stock issued (in shares)	2,302,961	2,254,375
Common stock outstanding (in shares)	2,200,944	2,152,358
Treasury stock (in shares)	102,017	102,017