Earning Per Common Share - Schedule of Earnings Per Share, Basic and Diluted (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
Numerator for basic and diluted loss per common share:
Income from continuing operations	$ 2,854	$ 6,970	$ 1,584	$ 6,965
Loss from discontinued operations	0	(6,447)	0	(8,308)
Net income (loss)	$ 2,854	$ 523	$ 1,584	$ (1,343)
Denominator:
Weighted average shares outstanding (in shares)	10,619,000	10,557,000	10,601,000	10,518,000
Denominator for basic income (loss) per common share (in shares)	10,619,000	10,557,000	10,601,000	10,518,000
Effect of dilutive securities:
Stock compensation plans (in shares)	115,000	66,000	128,000	0
Dilutive potential common shares (in shares)	115,000	66,000	128,000	0
Denominator for diluted income (loss) per common share - adjusted weighted average shares outstanding (in shares)	10,734,000	10,623,000	10,729,000	10,518,000
Continuing operations (usd per share)	$ 0.27	$ 0.66	$ 0.15	$ 0.66
Discontinued operations (usd per share)	0	(0.61)	0	(0.79)
Basic income (loss) per common share (usd per share)	0.27	0.05	0.15	(0.13)
Continuing operations (usd per share)	0.27	0.66	0.15	0.66
Discontinued operations (usd per share)	0	(0.61)	0	(0.79)
Diluted income (loss) per common share (usd per share)	$ 0.27	$ 0.05	$ 0.15	$ (0.13)
Anti-dilutive shares (in shares)	0	0	0	131,000