Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net income	$ 2,738	$ 3,003	$ 5,451	$ 6,249
Less allocation of earnings and dividends to participating securities	3	2	7	4
Net income allocated to common shareholders	$ 2,735	$ 3,001	$ 5,444	$ 6,245
Weighted average common shares outstanding, gross (in shares)	11,114,745	10,010,455	10,578,290	10,005,798
Less average participating securities (in shares)	15,260	6,033	15,260	6,033
Weighted average number of shares outstanding used in the calculation of basic earnings per common share (in shares)	11,099,485	10,004,422	10,563,030	9,999,765
Add dilutive effect of:
Stock options (in shares)	5,529	6,890	5,762	7,427
Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share (in shares)	11,105,014	10,011,312	10,568,792	10,007,192
Earnings per common share:
Basic (usd per share)	$ 0.25	$ 0.30	$ 0.52	$ 0.62
Diluted (usd per share)	$ 0.25	$ 0.30	$ 0.52	$ 0.62