Earning Per Common Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator for basic and diluted loss per common share:
Net loss	$ (1,586)	$ (1,270)
Denominator:
Weighted average shares outstanding (in shares)	10,685,000	10,583,000
Denominator for basic income (loss) per common share (in shares)	10,685,000	10,583,000
Effect of dilutive securities:
Dilutive potential common shares (in shares)	0	0
Denominator for diluted income (loss) per common share - adjusted weighted average shares outstanding (in shares)	10,685,000	10,583,000
Basic income (loss) per common share (usd per share)	$ (0.15)	$ (0.12)
Diluted income (loss) per common share (usd per share)	$ (0.15)	$ (0.12)
Anti-dilutive shares (in shares)	122,000	140,000