Stockholders' Equity and Earnings per Share, Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Computation of earnings per share [Abstract]
Net Income Available to Common Stockholders, Basic	$ 3,012	$ 1,250
Net Income Available to Common Stockholders, Diluted	$ 3,012	$ 1,250
Weighted Average Common Shares, Basic (in shares)	5,224,501	5,200,250
Potentially dilutive common shares - employee stock purchase program (in shares)	0	1,000
Weighted Average Common Shares, Diluted (in shares)	5,224,501	5,200,989
Earnings Per Share, Basic (in dollars per share)	$ 0.58	$ 0.24
Earnings Per Share, Diluted (in dollars per share)	$ 0.58	$ 0.24
Stock Options [Member]
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0