Consolidated Balance Sheets [Parenthetical] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets
Allowance for loan losses	$ 6,127	$ 5,545
Stockholders' Equity
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)	2,373,156	2,254,375
Common stock outstanding (in shares)	2,271,139	2,152,358
Treasury stock (in shares)	102,017	102,017