Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic and diluted earnings
Net income	$ 112	$ 63	$ 254	$ 20
Less: Preferred stock dividends	(100)	0	(200)	0
Net income applicable to common stockholders	$ 12	$ 63	$ 54	$ 20
Weighted average common shares outstanding - basic	6,602	6,601	6,602	6,601
Dilutive potential common shares from stock options, restricted stock units, and convertible preferred stock	0	0	0	0
Weighted average common shares outstanding - diluted	6,602	6,601	6,602	6,601
Earnings per share:
Earnings per common share, basic	$ 0.00	$ 0.01	$ 0.01	$ 0.00
Earnings per common share, diluted	$ 0.00	$ 0.01	$ 0.01	$ 0.00
Shares subject to anti-dilutive stock options and restricted stock units excluded from calculation	0	0	0	0
Shares subject to anti-dilutive Series A Convertible Preferred Stock excluded from calculation	0	0	0	0
Series A Convertible Preferred Stock
Earnings per share:
Shares subject to anti-dilutive stock options and restricted stock units excluded from calculation	400	0	400	0
Shares subject to anti-dilutive Series A Convertible Preferred Stock excluded from calculation	400	0	400	0