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Condensed Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2019 $ 5,207 $ 51,628,536 $ (45,809,581) $ 5,824,162
Beginning balance, shares at Dec. 31, 2019 5,208,170      
Stock issued for director services - vested $ 15 78,432 78,447
Stock issued for director services, shares 14,813      
Stock issued to escrow account - unvested $ (15) 15
Stock issued to escrow account - unvested, shares (14,813)      
Stock option expense 27,068 27,068
Warrants exercised for cash $ 44 282,306 282,350
Warrants exercised for cash, shares 43,993      
Net loss (942,521) (942,521)
Ending balance, value at Mar. 31, 2020 $ 5,251 52,016,357 (46,752,102) 5,269,506
Ending balance, shares at Mar. 31, 2020 5,252,163      
Beginning balance, value at Dec. 31, 2019 $ 5,207 51,628,536 (45,809,581) 5,824,162
Beginning balance, shares at Dec. 31, 2019 5,208,170      
Net loss       (2,876,501)
Ending balance, value at Sep. 30, 2020 $ 6,778 63,571,748 (48,686,082) 14,892,444
Ending balance, shares at Sep. 30, 2020 6,778,827      
Beginning balance, value at Mar. 31, 2020 $ 5,251 52,016,357 (46,752,102) 5,269,506
Beginning balance, shares at Mar. 31, 2020 5,252,163      
Stock issued for director services - vested $ 15 89,674 89,689
Stock issued for director services, shares 15,073      
Stock issued to escrow account - unvested $ 6 (6)
Stock issued to escrow account - unvested, shares 5,335      
Stock option expense 27,068 27,068
Warrants exercised for cash $ 5 34,830 34,835
Warrants exercised for cash, shares 5,278      
Net loss (833,957) (833,957)
Ending balance, value at Jun. 30, 2020 $ 5,277 52,167,923 (47,586,059) 4,587,141
Ending balance, shares at Jun. 30, 2020 5,277,849      
Stock issued for director services - vested $ 15 89,674 89,689
Stock issued for director services, shares 15,073      
Stock issued to escrow account - unvested $ (15) 15
Stock issued to escrow account - unvested, shares (15,073)      
Stock option expense 27,068 27,068
Proceeds from issuance of common stock, pursuant to public offering $ 1,394 11,498,281 11,499,675
Proceeds from issuance of common stock, pursuant to public offering, shares 1,393,900      
Warrants exercised for cash $ 102 749,625 749,727
Warrants exercised for cash, shares 102,179      
Stock option exercise (cashless) $ 2 (2)
Stock option exercise (cashless), shares 2,199      
Stock issued for services $ 3 (3)
Stock issued for services, shares 2,700      
Cash fees related to stock offering (960,833) (960,833)
Net loss       (1,100,023)
Net loss (1,100,023) (1,100,023)
Ending balance, value at Sep. 30, 2020 $ 6,778 63,571,748 (48,686,082) 14,892,444
Ending balance, shares at Sep. 30, 2020 6,778,827      
Beginning balance, value at Dec. 31, 2020 $ 8,482 80,166,415 (51,022,606) 29,152,291
Beginning balance, shares at Dec. 31, 2020 8,482,387      
Stock issued for director services - vested $ 11 122,435 122,446
Stock issued for director services, shares 10,548      
Stock issued to escrow account - unvested $ (12) 12
Stock issued to escrow account - unvested, shares (24,253)      
Stock option expense 68,944 68,944
Warrants exercised for cash $ 389 2,469,155 2,469,544
Warrants exercised for cash, shares 388,638      
Stock option exercise (cashless) $ 1 (46,963) (46,962)
Stock option exercise (cashless), shares 1,063      
Net loss (1,250,809) (1,250,809)
Ending balance, value at Mar. 31, 2021 $ 8,871 82,779,998 (52,273,415) 30,515,454
Ending balance, shares at Mar. 31, 2021 8,858,383      
Beginning balance, value at Dec. 31, 2020 $ 8,482 80,166,415 (51,022,606) 29,152,291
Beginning balance, shares at Dec. 31, 2020 8,482,387      
Net loss       (4,581,228)
Ending balance, value at Sep. 30, 2021 $ 8,950 83,050,786 (55,603,834) 27,455,902
Ending balance, shares at Sep. 30, 2021 8,948,248      
Beginning balance, value at Mar. 31, 2021 $ 8,871 82,779,998 (52,273,415) 30,515,454
Beginning balance, shares at Mar. 31, 2021 8,858,383      
Stock issued for director services - vested $ 12 246,322 246,334
Stock issued for director services, shares 12,156      
Stock issued to escrow account - unvested $ (14) 14
Stock issued to escrow account - unvested, shares (1,512)      
Stock option expense 57,644 57,644
Warrants exercised for cash $ 28 173,922 173,950
Warrants exercised for cash, shares 27,611      
Stock option exercise (cashless) $ 1 (34,078) (34,077)
Stock option exercise (cashless), shares 1,317      
Net loss (1,641,788) (1,641,788)
Ending balance, value at Jun. 30, 2021 $ 8,898 83,223,822 (53,915,203) 29,317,517
Ending balance, shares at Jun. 30, 2021 8,897,955      
Stock issued for director services - vested $ 13 270,071 270,084
Stock issued for director services, shares 12,868      
Stock issued to escrow account - unvested $ (3) 3
Stock issued to escrow account - unvested, shares (3,068)      
Stock option expense 49,136 49,136
Warrants exercised for cash $ 7 41,019 41,026
Warrants exercised for cash, shares 6,512      
Stock option exercise (cashless) $ 34 (543,970) (543,936)
Stock option exercise (cashless), shares 33,142      
Net loss       (1,688,631)
Net loss (1,688,631) (1,688,631)
Ending balance, value at Sep. 30, 2021 $ 8,950 83,050,786 (55,603,834) 27,455,902
Ending balance, shares at Sep. 30, 2021 8,948,248      
Stock option exercise (for cash) $ 1 $ 10,705 $ 10,706
Stock option exercise (for cash), shares 839