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Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Common Stock [Member]
Additional paid-in capital [Member]
Accumulated other comprehensive income (loss) [Member]
Accumulated deficit [Member]
Total
Balance Beginning at Dec. 31, 2019 $ 9 $ 23,978 $ 14 $ (7,159) $ 16,842
Balance Beginning (in shares) at Dec. 31, 2019 8,726,045        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income (loss)       (2,921) (2,921)
Stock-based compensation   2     2
Balance Ending at Mar. 31, 2020 $ 9 23,980 14 (10,080) 13,923
Balance Ending (in shares) at Mar. 31, 2020 8,726,045        
Balance Beginning at Dec. 31, 2020 $ 9 23,981 14 (10,145) $ 13,859
Balance Beginning (in shares) at Dec. 31, 2020 8,726,045       8,726,045
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income (loss)       351 $ 351
Stock-based compensation   33     33
Balance Ending at Mar. 31, 2021 $ 9 $ 24,014 $ 14 $ (9,794) $ 14,243
Balance Ending (in shares) at Mar. 31, 2021 8,726,045       8,726,045