Stockholders' Equity and Earnings per Common Share, Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Computation of earnings per share [Abstract]
Net Income Available to Common Stockholders, Basic	$ 5,389	$ 7,860
Net Income Available to Common Stockholders, Diluted	$ 5,389	$ 7,860
Weighted Average Common Shares, Basic (in shares)	5,216,237	5,196,812
Potentially dilutive common shares - employee stock purchase program (in shares)	0	0
Weighted Average Common Shares, Diluted (in shares)	5,216,441	5,196,853
Earnings Per Share, Basic (in dollars per share)	$ 1.03	$ 1.51
Earnings Per Share, Diluted (in dollars per share)	$ 1.03	$ 1.51
Stock Options [Member]
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0