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Condensed Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2020 $ 8 $ 80,166 $ (51,023) $ 29,151
Beginning balance, shares at Dec. 31, 2020 8,482      
Stock issued for director services - vested 123 123
Stock issued for director services, shares 11      
Stock issued to escrow account - unvested
Stock issued to escrow account - unvested, shares (24)      
Stock option expense 69 69
Warrants exercised for cash $ 1 2,469 2,470
Warrants exercised for cash, shares 389      
Stock option exercise (cashless) (47) (47)
Stock option exercise (cashless), shares 1      
Net loss (1,251) (1,251)
Ending balance, value at Mar. 31, 2021 $ 9 82,780 (52,274) 30,515
Ending balance, shares at Mar. 31, 2021 8,859      
Beginning balance, value at Dec. 31, 2021 $ 9 83,588 (57,619) 25,978
Beginning balance, shares at Dec. 31, 2021 8,972      
Stock issued for director services - vested 107 107
Stock issued for director services, shares 5      
Stock issued for acquisition $ 1 14,358 14,359
Stock issued for acquisition 1,055      
Stock issued to escrow account - unvested, shares 2      
Stock option expense 94 94
Warrants exercised for cash 88 88
Warrants exercised for cash, shares 14      
Net loss (2,278) (2,278)
Stock issued to escrow account - unvested 0 0 0 0
Ending balance, value at Mar. 31, 2022 $ 10 $ 98,235 $ (59,897) $ 38,348
Ending balance, shares at Mar. 31, 2022 10,048