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Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Noncontrolling Interest [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2019 $ 12,079 $ 83,216,387 $ (2,157,226) $ (87,388,619) $ (6,317,379)
Balance, shares at Dec. 31, 2019 12,079,095          
Stock-based compensation 311,677 311,677
Restricted common stock grant $ 530 (530)
Balance, shares 530,050          
Restricted common stock forfeitures $ (23) 23
Balance, shares (22,500)          
Issuance of common stock upon conversion of secured convertible notes and interest $ 960 1,342,400 1,343,360
Balance, shares 959,543          
Issuance of common stock through underwritten public offering (net of offering expenses and underwriters’ discount) $ 2,522 2,499,614 2,502,136
Balance, shares 2,521,740          
Issuance of common stock purchase warrants in connection with issuance of unsecured promissory note payable 20,806 20,806
Net income (2,334,110) (2,334,110)
Ending balance, value at Mar. 31, 2020 $ 16,068 87,390,377 (2,157,226) (89,722,729) (4,473,510)
Balance, shares at Mar. 31, 2020 16,067,928          
Beginning balance, value at Dec. 31, 2019 $ 12,079 83,216,387 (2,157,226) (87,388,619) (6,317,379)
Balance, shares at Dec. 31, 2019 12,079,095          
Net income           (2,304,562)
Ending balance, value at Sep. 30, 2020 $ 26,836 106,225,896 (2,157,226) (89,693,181) 14,402,325
Balance, shares at Sep. 30, 2020 26,836,209          
Net income           (2,304,562)
Beginning balance, value at Mar. 31, 2020 $ 16,068 87,390,377 (2,157,226) (89,722,729) (4,473,510)
Balance, shares at Mar. 31, 2020 16,067,928          
Stock-based compensation 376,738 376,738
Restricted common stock grant $ 135 (135)
Balance, shares 135,450          
Restricted common stock forfeitures $ (13) 13
Balance, shares (12,750)          
Issuance of common stock upon conversion of secured convertible notes and interest $ 1,665 1,679,660 1,681,325
Balance, shares 1,664,669          
Issuance of common stock through underwritten public offering (net of offering expenses and underwriters’ discount) $ 2,540 4,974,152 4,976,692
Balance, shares 2,539,534          
Issuance of common stock upon exercise of common stock purchase warrants $ 2,694 5,200,428 5,203,122
Balance, shares 2,693,867          
Issuance of common stock upon exercise of stock options $ 2 7,798       7,800
Balance, shares 1,875          
Issuance of common stock purchase warrants in connection with issuance of secured convertible notes 721,141 721,141
Issuance of common stock through underwritten public offering (net of offering expenses and underwriters’ discount) $ 3,554 5,346,859 5,350,413
Balance, shares 3,554,545          
Net income (497,894) (497,894)
Ending balance, value at Jun. 30, 2020 $ 26,645 105,697,031 (2,157,226) (90,220,623) 13,345,827
Balance, shares at Jun. 30, 2020 26,645,118          
Stock-based compensation 498,356 498,356
Restricted common stock grant $ 181 (181)
Balance, shares 181,091          
Issuance of common stock for services rendered $ 10 30,690 30,700
Balance, shares 10,000          
Net income 527,442 527,442
Ending balance, value at Sep. 30, 2020 $ 26,836 106,225,896 (2,157,226) (89,693,181) 14,402,325
Balance, shares at Sep. 30, 2020 26,836,209          
Net income           527,442
Beginning balance, value at Dec. 31, 2020 $ 26,835 106,501,396 (2,157,226) (90,014,500) 14,356,505
Balance, shares at Dec. 31, 2020 26,834,709          
Stock-based compensation 326,164 326,164
Restricted common stock grant $ 450 (450)
Balance, shares 450,000          
Restricted common stock forfeitures $ (8) 8
Balance, shares (7,500)          
Issuance of common stock through registered direct offering and accompanying warrants (net of offering expenses and placement agent discount) $ 2,800 6,726,200 6,729,000
Balance, shares 2,800,000          
Issuance of common stock through registered direct offering accompanying warrants (net of offering expenses and placement agent discount) $ 3,250 6,614,350 6,617,600
Balance, shares 3,250,000          
Exercise of pre-funded common stock purchase warrants $ 7,200 22,276,800 22,284,000
Balance, shares 7,200,000          
Exercise of pre-funded common stock purchase warrants $ 11,050 30,928,950 30,940,000
Balance, shares 11,050,000          
Issuance of pre-funded common stock purchase warrants in connection with the registered direct offerings (1,817,548) (1,817,548)
Issuance of common stock purchase warrants at exercise price in connection with the registered direct offerings (49,398,510) (49,398,510)
Ending balance, value at Mar. 31, 2021 $ 51,577 122,157,360 (2,157,226) (68,292,642) 51,759,069
Balance, shares at Mar. 31, 2021 51,577,209          
Net income 21,721,858 21,721,858
Beginning balance, value at Dec. 31, 2020 $ 26,835 106,501,396 (2,157,226) (90,014,500) 14,356,505
Balance, shares at Dec. 31, 2020 26,834,709          
Net income           24,388,307
Ending balance, value at Sep. 30, 2021 $ 52,703 123,968,757 (2,157,226) (19,863) (65,606,330) 56,238,041
Balance, shares at Sep. 30, 2021 52,702,947          
Net income           24,408,170
Beginning balance, value at Mar. 31, 2021 $ 51,577 122,157,360 (2,157,226) (68,292,642) 51,759,069
Balance, shares at Mar. 31, 2021 51,577,209          
Stock-based compensation 330,213 330,213
Net income (5,382,487) (5,382,487)
Ending balance, value at Jun. 30, 2021 $ 51,577 122,487,573 (2,157,226) (73,675,129) 46,706,795
Balance, shares at Jun. 30, 2021 51,577,209          
Stock-based compensation 491,950 491,950
Restricted common stock grant $ 406 (406)      
Balance, shares 406,000          
Issuance of common stock through registered direct offering and accompanying warrants (net of offering expenses and placement agent discount)  
Balance, shares          
Issuance of common stock through registered direct offering accompanying warrants (net of offering expenses and placement agent discount)  
Balance, shares          
Issuance of common stock as consideration for acquisition $ 720 989,640     990,360
Issuance of common stock as compensation for acquisition, shares 719,738          
Net income (19,863) 8,068,799 8,048,936
Ending balance, value at Sep. 30, 2021 $ 52,703 $ 123,968,757 $ (2,157,226) $ (19,863) $ (65,606,330) 56,238,041
Balance, shares at Sep. 30, 2021 52,702,947          
Net income           $ 8,068,799