Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income	$ 5,057	$ 4,728	$ 10,083	$ 9,355
Less allocation of earnings and dividends to participating securities	12	9	23	17
Net income allocated to common shareholders	$ 5,045	$ 4,719	$ 10,060	$ 9,338
Weighted average common shares outstanding, gross (in shares)	12,970,570	13,216,922	12,963,123	13,262,140
Less average participating securities (in shares)	29,595	24,231	29,595	24,231
Weighted average number of shares outstanding used in the calculation of basic earnings per common share (in shares)	12,940,975	13,192,691	12,933,528	13,237,909
Add dilutive effect of:
Stock options (in shares)	26	3,974	630	3,843
Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share (in shares)	12,941,001	13,196,665	12,934,158	13,241,752
Earnings per common share:
Basic (usd per share)	$ 0.39	$ 0.36	$ 0.78	$ 0.71
Diluted (usd per share)	$ 0.39	$ 0.36	$ 0.78	$ 0.71