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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance at beginning at Dec. 31, 2019 $ 381 $ 101,886 $ (100,756) $ 1,511
Balance at beginning (in shares) at Dec. 31, 2019 38,136,792      
Stock option exercises $ 1 36 37
Stock option exercises (in shares)   84,500      
Stock-based compensation 195 195
Net income 989 989
Balance at ending at Dec. 31, 2020 $ 382 102,117 (99,767) $ 2,732
Balance at ending (in shares) at Dec. 31, 2020 38,221,292      
Stock option exercises (in shares)         535,100
Stock-based compensation 160 $ 160
Net income 2,320 2,320
Issuances of shares and stock option exercises $ 6 228 234
Issuances of shares and stock option exercises (in shares)   576,726      
Exercise of conversion rights – convertible loan, related party $ 101 1,918 2,019
Exercise of conversion rights convertible loan, related party (in shares)   10,095,555      
Balance at ending at Dec. 31, 2021 $ 489 $ 104,423 $ (97,447) $ 7,465
Balance at ending (in shares) at Dec. 31, 2021 48,893,573