Stockholders' Equity and Earnings per Share, 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
Computation of earnings per share [Abstract]
Net Income Available to Common Stockholders, Basic	$ 1,842	$ 2,494	$ 4,854	$ 3,744
Net Income Available to Common Stockholders, Diluted	$ 1,842	$ 2,494	$ 4,854	$ 3,744
Weighted Average Common Shares, Basic (in shares)	5,237,479	5,220,137	5,231,026	5,210,139
Potentially dilutive common shares - employee stock purchase program (in shares)				1,000
Weighted Average Common Shares, Diluted (in shares)	5,237,479	5,220,262	5,231,026	5,210,573
Earnings Per Share, Basic (in dollars per share)	$ 0.35	$ 0.48	$ 0.93	$ 0.72
Earnings Per Share, Diluted (in dollars per share)	$ 0.35	$ 0.48	$ 0.93	$ 0.72
Stock Options [Member]
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)			0	0