Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for loan losses	$ 3,250	$ 3,040
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	9,000,000	9,000,000
Common stock, shares issued	3,978,731	3,978,731
Treasury stock, shares	1,196,892	1,196,892