Income per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income	$ 17	$ 1,131
Denominator:
Weighted average common shares outstanding	5,362	5,322
Dilutive potential common shares	15	20
Shares used in diluted net income per common share calculations	5,377	5,342
Basic net income per common share	$ 0	$ 0.21
Diluted net income per common share	$ 0	$ 0.21
Shares excluded from diluted weighted shares outstanding	2,000	5,000