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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Total
--- | --- | --- | --- | ---
Balance at Dec. 31, 2018 | $ 133,908 | $ 17,528,947 | $ (33,225,107) | $ (15,562,252)
Balance (in shares) at Dec. 31, 2018 | 133,907,747 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Stock-based compensation expense | $ 0 | 680,455 | 0 | 680,455
Warrants issued in connection with convertible multi-draw credit agreement, related party | 0 | 716,110 | 0 | 716,110
Beneficial conversion feature in connection with convertible multi-draw credit agreement - related party | 0 | 1,584,850 | 0 | 1,584,850
Issuance of common stock net of issuance costs of $16,900 | $ 8,000 | 1,911,372 | 0 | 1,919,372
Issuance of common stock net of issuance costs of $16,900 (in shares) | 8,000,000 |  |  |
Series B warrant exercises | $ 187 | 144,188 | 0 | 144,375
Series B warrant exercises (in shares) | 187,500 |  |  |
Exercise of Emerald financing warrants | $ 40,800 | 9,972,523 | 0 | 10,013,323
Exercise of Emerald financing warrants (in shares) | 40,800,000 |  |  |
Net loss for the year | $ 0 | 0 | 1,051,825 | 1,051,825
Balance at Dec. 31, 2019 | $ 182,895 | 32,538,445 | (32,173,282) | 548,058
Balance (in shares) at Dec. 31, 2019 | 182,895,247 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Stock-based compensation expense | $ 0 | 302,742 | 0 | 302,742
Issuance of common stock net of issuance costs of $16,900 | $ 56,333 | 6,029,256 | 0 | 6,085,589
Issuance of common stock net of issuance costs of $16,900 (in shares) | 56,333,334 |  |  |
Exercise of pre-funded warrants | $ 48,533 | 0 | 0 | 48,533
Exercise of pre-funded warrants (in shares) | 48,533,334 |  |  |
Series B warrant exercises | $ 313 | 26,250 | 0 | 26,563
Series B warrant exercises (in shares) | 312,500 |  |  |
Net loss for the year | $ 0 | 0 | (6,560,699) | (6,560,699)
Balance at Dec. 31, 2020 | $ 288,074 | $ 38,896,693 | $ (38,733,981) | $ 450,786
Balance (in shares) at Dec. 31, 2020 | 288,074,415 |  |  |

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