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Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Basic and diluted earnings        
Net income (loss) $ 6 $ 223 $ 260 $ 243
Less: Preferred stock dividends (100) 0 (300) 0
Net income (loss) applicable to common stockholders $ (94) $ 223 $ (40) $ 243
Weighted average common shares outstanding - basic 6,603 6,602 6,603 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 6,603 6,602 6,603 6,601
Earnings (loss) per share:        
Earnings (loss) per common share, basic $ (0.01) $ 0.03 $ (0.01) $ 0.04
Earnings per common share - diluted $ (0.01) $ 0.03 $ (0.01) $ 0.04
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 Convertible Preferred Stock        
Earnings (loss) 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