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Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) | Public Offering [Member] Common Stock [Member] | Public Offering [Member] Additional Paid-in Capital [Member] | Public Offering [Member] Retained Earnings [Member] | Public Offering [Member] | Warrants Issued in Connection with Convertible Notes [Member] Common Stock [Member] | Warrants Issued in Connection with Convertible Notes [Member] Additional Paid-in Capital [Member] | Warrants Issued in Connection with Convertible Notes [Member] Retained Earnings [Member] | Warrants Issued in Connection with Convertible Notes [Member] | Warrants Issued for Consulting Fees [Member] Common Stock [Member] | Warrants Issued for Consulting Fees [Member] Additional Paid-in Capital [Member] | Warrants Issued for Consulting Fees [Member] Retained Earnings [Member] | Warrants Issued for Consulting Fees [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  | 1,758,288 |  |  |
Balance at Dec. 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  | $ 176 | $ 85,600,362 | $ (75,134,316) | $ 10,466,222
Issuance of common stock for directors’ fees (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 4,612 |  |  |
Issuance of common stock for directors’ fees |  |  |  |  |  |  |  |  |  |  |  |  | $ 1 | 35,012 |  | 35,013
Issuance of common stock for commitment fees net of adjustments (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 49,583 |  |  |
Issuance of common stock for commitment fees net of adjustments |  |  |  |  |  |  |  |  |  |  |  |  | $ 5 | 594,995 |  | 595,000
Warrant debt discount valuation |  |  |  |  |  |  |  |  |  |  |  |  |  | 595,662 |  | 595,662
Legal and commitment fees |  |  |  |  |  |  |  |  |  |  |  |  |  | (301,077) |  | (301,077)
Share-based compensation |  |  |  |  |  |  |  |  |  |  |  |  |  | 912,707 |  | 912,707
Net loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (14,588,700) | (14,588,700)
Balance (in shares) at Dec. 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  | 1,812,483 |  |  |
Balance at Dec. 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  | $ 182 | 87,437,661 | (89,723,016) | (2,285,173)
Issuance of common stock for directors’ fees (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 5,270 |  |  |
Issuance of common stock for directors’ fees |  |  |  |  |  |  |  |  |  |  |  |  |  | 28,511 |  | 28,511
Legal and commitment fees |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,371,223) |  | (2,371,223)
Share-based compensation |  |  |  |  |  |  |  |  |  |  |  |  |  | 656,008 |  | 656,008
Net loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (9,673,987) | (9,673,987)
Issuance of common stock pursuant to securities purchase agreements (in shares) | 4,264,313 |  |  |  |  |  |  |  |  |  |  |  | 43,939 |  |  |
Issuance of common stock pursuant to securities purchase agreements | $ 426 | $ 22,173,999 |  | $ 22,174,425 |  |  |  |  |  |  |  |  | $ 5 | 277,828 |  | 277,833
Issuance of common stock pursuant to public offering (in shares) | 4,264,313 |  |  |  |  |  |  |  |  |  |  |  | 43,939 |  |  |
Issuance of common stock pursuant to public offering | $ 426 | $ 22,173,999 |  | $ 22,174,425 |  |  |  |  |  |  |  |  | $ 5 | 277,828 |  | 277,833
Issuance of common stock pursuant to warrant exercises (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 918,538 |  |  |
Issuance of common stock pursuant to warrant exercises |  |  |  |  |  |  |  |  |  |  |  |  | $ 92 | 5,602,503 |  | 5,602,595
Issuance of common stock for conversion of convertible note payable (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 728,654 |  |  |
Issuance of common stock for conversion of convertible note payable |  |  |  |  |  |  |  |  |  |  |  |  | $ 73 | 3,788,927 |  | 3,789,000
Issuance of restricted common stock to employees (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 41,375 |  |  |
Issuance of restricted common stock to employees |  |  |  |  |  |  |  |  |  |  |  |  | $ 4 | (4) |  |
Warrants issued |  |  |  |  |  | $ 1,388,339 |  | $ 1,388,339 |  | $ 107,576 |  | $ 107,576 |  |  |  |
Warrants issued |  |  |  |  |  | $ 1,388,339 |  | $ 1,388,339 |  | $ 107,576 |  | $ 107,576 |  |  |  |
Beneficial conversion feature |  |  |  |  |  |  |  |  |  |  |  |  |  | 641,215 |  | 641,215
Deemed dividends related to down-round features |  |  |  |  |  |  |  |  |  |  |  |  |  | 112,686 | (112,686) |
Balance (in shares) at Dec. 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  | 7,814,572 |  |  |
Balance at Dec. 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  | $ 782 | $ 119,844,026 | $ (99,509,689) | $ 20,335,119

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