Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 5,290	$ 5,057	$ 10,530	$ 10,083
Less allocation of earnings and dividends to participating securities	19	12	38	23
Net income allocated to common shareholders	$ 5,271	$ 5,045	$ 10,492	$ 10,060
Weighted average common shares outstanding, gross (in shares)	12,789,684	12,970,570	12,815,089	12,963,123
Less average participating securities (in shares)	45,958	29,595	45,958	29,595
Weighted average number of shares outstanding used in the calculation of basic earnings per common share (in shares)	12,743,726	12,940,975	12,769,131	12,933,528
Add dilutive effect of:
Stock options (in shares)	0	26	15	630
Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share (in shares)	12,743,726	12,941,001	12,769,146	12,934,158
Earnings per common share:
Basic (usd per share)	$ 0.41	$ 0.39	$ 0.82	$ 0.78
Diluted (usd per share)	$ 0.41	$ 0.39	$ 0.82	$ 0.78