Stockholders' Equity and Earnings per Share, OCI by Component, Anti-Dilutive Securities (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
Computation of earnings per share [Abstract]
Net Income (loss) Available to Common Stockholders, Basic	$ 2,494	$ 1,626	$ 3,744	$ 3,653
Net Income Available to Common Stockholders, Diluted	$ 2,494	$ 1,626	$ 3,744	$ 3,653
Weighted Average Common Shares, Basic (in shares)	5,220,137	5,202,166	5,210,139	5,194,529
Potentially dilutive common shares - employee stock purchase program (in shares)	0	0	1,000	0
Weighted Average Common Shares, Diluted (in shares)	5,220,262	5,202,196	5,210,573	5,194,594
Earnings Per Share, Basic (in dollars per share)	$ 0.48	$ 0.31	$ 0.72	$ 0.70
Earnings Per Share, Diluted (in dollars per share)	$ 0.48	$ 0.31	$ 0.72	$ 0.70
Stock Options [Member]
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)			0	0