Earnings Per Share (Computation of Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 1,897	$ 1,606	$ 5,271	$ 4,249
Weighted-average common shares outstanding	5,000	5,074	5,008	5,089
Basic earnings per share	$ 0.38	$ 0.32	$ 1.05	$ 0.83
Common stock equivalents due to effect of stock options	11	7	9	6
Total weighted-average common shares and equivalents	5,011	5,081	5,017	5,095
Diluted earnings per share	$ 0.38	$ 0.32	$ 1.05	$ 0.83