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CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Total
Beginning balance, shares at Dec. 31, 2019 1,725,000      
Beginning balance at Dec. 31, 2019 $ 16,000 $ 16,039,000 $ (4,261,000) $ 11,794,000
Issuance of common stock, net, shares 5,000      
Issuance of common stock, net   20,000   20,000
Value of stock-based compensation   49,000   49,000
Net loss (863,000) (863,000)
Ending balance, shares at Mar. 31, 2020 1,730,000      
Ending balance at Mar. 31, 2020 $ 16,000 16,108,000 (5,124,000) 11,000,000
Beginning balance, shares at Dec. 31, 2020 1,748,000      
Beginning balance at Dec. 31, 2020 $ 17,000 16,238,000 (8,561,000) 7,694,000
Issuance of common stock, net, shares 6,000      
Issuance of common stock, net $ 1,000 25,000   26,000
Value of stock-based compensation   56,000   56,000
Net loss (659,000) (659,000)
Ending balance, shares at Mar. 31, 2021 1,754,000      
Ending balance at Mar. 31, 2021 $ 18,000 $ 16,319,000 $ (9,220,000) $ 7,117,000