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Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2019 $ 232,562 $ 304,885,663 $ (85,188) $ 42,778 $ (290,516,780) $ 14,559,035
Beginning balance, shares at Dec. 31, 2019 23,255,818   334      
Net loss (18,471,409) (18,471,409)
Sale of equity through equity financing facilities $ 123,301 20,127,125 20,250,426
Sale of equity through equity financing facilities, shares 12,330,243          
Issuance of common stock upon exercise of options $ 1,409 370,486 371,895
Issuance of common stock upon exercise of options, shares 140,864          
Common stock warrants issued in exchange for services 44,798 44,798
Issuance of restricted stock $ 30 (30)
Issuance of restricted stock, shares 3,000          
Realized and unrealized gains and losses, net, on investments securities (42,778) (42,778)
Stock-based compensation expense 1,448,202 1,448,202
Common stock issued to settle accrued bonuses $ 4,299 494,333 498,632
Common stock issued to settle accrued bonuses 429,855          
Ending balance, value at Sep. 30, 2020 $ 361,601 327,370,577 $ (85,188) (308,988,189) 18,658,801
Ending balance, shares at Sep. 30, 2020 36,159,780   334      
Beginning balance, value at Dec. 31, 2019 $ 232,562 304,885,663 $ (85,188) 42,778 (290,516,780) 14,559,035
Beginning balance, shares at Dec. 31, 2019 23,255,818   334      
Ending balance, value at Dec. 31, 2020 $ 407,014 330,289,596 $ (85,188) (312,000,341) 18,611,081
Ending balance, shares at Dec. 31, 2020 40,701,022   334      
Beginning balance, value at Jun. 30, 2020 $ 332,297 324,869,780 $ (85,188) 7,866 (300,916,593) 24,208,162
Beginning balance, shares at Jun. 30, 2020 33,229,380   334      
Net loss (8,071,596) (8,071,596)
Sale of equity through equity financing facilities $ 29,274 2,038,553 2,067,827
Sale of equity through equity financing facilities, shares 2,927,400          
Common stock warrants issued in exchange for services 44,798 44,798
Issuance of restricted stock $ 30 (30)
Issuance of restricted stock, shares 3,000          
Realized and unrealized gains and losses, net, on investments securities (7,866) (7,866)
Stock-based compensation expense 417,476 417,476
Ending balance, value at Sep. 30, 2020 $ 361,601 327,370,577 $ (85,188) (308,988,189) 18,658,801
Ending balance, shares at Sep. 30, 2020 36,159,780   334      
Beginning balance, value at Dec. 31, 2020 $ 407,014 330,289,596 $ (85,188) (312,000,341) 18,611,081
Beginning balance, shares at Dec. 31, 2020 40,701,022   334      
Net loss (16,547,944) (16,547,944)
Sale of equity through equity financing facilities $ 446,326 52,242,619 52,688,945
Sale of equity through equity financing facilities, shares 44,632,547          
Shares issued upon exercise of common stock warrants, net of fees $ 12,166 1,496,500 1,508,666
Shares issued upon exercise of common stock warrants, net of fees 1,216,667          
Shares issued upon exercise of options to purchase common stock $ 75 4,650 4,725
Shares issued upon exercise of options to purchase common stock, shares 7,500          
Realized and unrealized gains and losses, net, on investments securities 2,139 2,139
Stock-based compensation expense 3,073,569 3,073,569
Ending balance, value at Sep. 30, 2021 $ 865,581 387,106,934 $ (85,188) 2,139 (328,548,285) 59,341,181
Ending balance, shares at Sep. 30, 2021 86,557,736   334      
Beginning balance, value at Jun. 30, 2021 $ 865,581 386,414,630 $ (85,188) (3,770) (323,137,741) 64,053,512
Beginning balance, shares at Jun. 30, 2021 86,557,736   334      
Net loss (5,410,544) (5,410,544)
Sale of equity through equity financing facilities (8,320) (8,320)
Sale of equity through equity financing facilities, shares          
Realized and unrealized gains and losses, net, on investments securities 5,909 5,909
Stock-based compensation expense 700,624 700,624
Ending balance, value at Sep. 30, 2021 $ 865,581 $ 387,106,934 $ (85,188) $ 2,139 $ (328,548,285) $ 59,341,181
Ending balance, shares at Sep. 30, 2021 86,557,736   334