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Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Basic and diluted earnings        
Net income (loss) $ (125) $ 6 $ 65 $ 260
Less: Preferred stock dividends (100) (100) (300) (300)
Net income (loss) applicable to common stockholders $ (225) $ (94) $ (235) $ (40)
Weighted average common shares outstanding - basic 6,582,000 6,603,000 6,597,000 6,603,000
Weighted average common shares outstanding - diluted 6,582,000 6,603,000 6,597,000 6,603,000
Earnings (loss) per share:        
Earnings (loss) per common share, basic $ (0.03) $ (0.01) $ (0.04) $ (0.01)
Earnings (loss) per common share, diluted $ (0.03) $ (0.01) $ (0.04) $ (0.01)
Series A Convertible Preferred Stock        
Earnings (loss) per share:        
Shares subject to anti-dilutive Series A Convertible Preferred Stock excluded from calculation 400,000 400,000 400,000 400,000
Series A Convertible Preferred Stock        
Earnings (loss) per share:        
Shares subject to anti-dilutive Series A Convertible Preferred Stock excluded from calculation     200,000  
Number of common shares for each convertible share 400,000   400,000  
Conversion price $ 12.50   $ 12.50