Business Description, Basis of Presentation and Significant Accounting Policies - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Business Description, Basis of Presentation and Significant Accounting Policies
Net income (loss)	$ (7,694)	$ 505
Basic weighted average shares (in shares)	19,859,817	17,271,629
Dilutive common stock equivalents using treasury stock method (in shares)		53,722
Diluted weighted average shares (in shares)	19,859,817	17,325,351
Basic income (loss) per common share: (in dollars per share)	$ (0.39)	$ 0.03
Diluted income (loss) per common share: (in dollars per share)	$ (0.39)	$ 0.03
Weighted average options, warrants and convertible portion of senior convertible notes outstanding (in shares)	4,654,601	2,611,574
Anti-dilutive options, warrants and convertible portion of senior convertible notes not included in the computation (in shares)	4,654,601	3,323,272