Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Net income	$ 3,106	$ 2,896	$ 9,355	$ 8,828
Less allocation of earnings and dividends to participating securities	2	0	6	0
Net income allocated to common shareholders	$ 3,104	$ 2,896	$ 9,349	$ 8,828
Weighted average common shares outstanding, gross (in shares)	10,014,840	9,962,571	10,008,845	9,930,182
Less average participating securities (in shares)	6,033	0	6,033	0
Weighted average number of shares outstanding used in the calculation of basic earnings per common share (in shares)	10,008,807	9,962,571	10,002,812	9,930,182
Add dilutive effect of:
Stock options (in shares)	6,397	10,052	7,130	15,360
Stock warrants (in shares)	0	0	0	22,093
Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share (in shares)	10,015,204	9,972,623	10,009,942	9,967,635
Earnings per common share:
Basic (usd per share)	$ 0.31	$ 0.29	$ 0.93	$ 0.89
Diluted (usd per share)	$ 0.31	$ 0.29	$ 0.93	$ 0.88