Earnings Per Share (Computation of Basic and Diluted Earnings per 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
Calculation of Earnings Per Share [Abstract]
Net income	$ 1,605	$ 1,845	$ 2,643	$ 3,258
Weighted-average common shares outstanding	5,091,000	5,102,000	5,097,000	5,098,000
Basic earnings per share	$ 0.32	$ 0.36	$ 0.52	$ 0.64
Common stock equivalents due to effect of stock options	5,000	20,000	6,000	21,000
Total weighted-average common shares and equivalents	5,096,000	5,122,000	5,103,000	5,119,000
Diluted earnings per share	$ 0.31	$ 0.36	$ 0.52	$ 0.64
Anti-dilutive stock options outstanding			3