Income per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net income	$ 74	$ 752	$ 92	$ 1,883
Denominator:
Weighted average common shares outstanding	5,381	5,341	5,371	5,332
Dilutive potential common shares	6	9	2	11
Shares used in diluted net income per common share calculations	5,387	5,350	5,373	5,343
Basic net income per common share	$ 0.01	$ 0.14	$ 0.02	$ 0.35
Diluted net income per common share	$ 0.01	$ 0.14	$ 0.02	$ 0.35
Shares excluded from diluted weighted shares outstanding	120,000	2,000	100,099	2,000