Stockholders' Equity and Earnings per Share, Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Computation of earnings per share [Abstract]
Net Income Available to Common Stockholders, Basic	$ 1,908	$ 1,100	$ 6,762	$ 4,844
Net Income Available to Common Stockholders, Diluted	$ 1,908	$ 1,100	$ 6,762	$ 4,844
Weighted Average Common Shares, Basic (in shares)	5,245,042	5,221,476	5,235,749	5,213,982
Potentially dilutive common shares - employee stock purchase program (in shares)	0	1,000	0	0
Weighted Average Common Shares, Diluted (in shares)	5,245,172	5,221,601	5,235,793	5,214,262
Earnings Per Share, Basic (in dollars per share)	$ 0.36	$ 0.21	$ 1.29	$ 0.93
Earnings Per Share, Diluted (in dollars per share)	$ 0.36	$ 0.21	$ 1.29	$ 0.93
Stock Options [Member]
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)			0	0