Calculation of Earnings Per Share (Computation of Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Calculation of Earnings Per Share [Abstract]
Net income	$ 5,835	$ 5,904
Weighted-average common shares outstanding	5,102	4,987
Basic earnings per share	$ 1.14	$ 1.18
Common stock equivalents due to effect of stock options	19	22
Total weighted-average common shares and equivalents	5,121	5,009
Diluted earnings per share	$ 1.14	$ 1.18