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Statements of Changes in Stockholders' Equity - USD ($) | Series A Preferred Stock [Member] | Series B Preferred Stock [Member] | Series C Preferred Stock [Member] | Common Stock [Member] | Additiona Paid-in Capital [Member] | Additional Accumulated Deficit [Member] | Other Comprehensive Loss [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 5,128,536 |  |  | $ 4,940 | $ 68,323,940 | $ (53,331,434) |  | $ 20,125,982
Balance, shares at Dec. 31, 2017 | 9,140 |  |  | 4,939,639 |  |  |  |
Payout to stockholders for fractional shares |  |  |  |  | (3,256) |  |  | (3,256)
Issuance of Series B preferred shares upon closing of private placement |  | $ 4,570,848 |  |  | 792,037 |  |  | 5,362,885
Issuance of Series B preferred shares upon closing of private placement, shares |  | 6,000 |  |  |  |  |  |
Commissions and offering costs of private placement |  | $ (390,449) |  |  | (122,081) |  |  | (512,530)
Deemed dividend of preferred stock | $ (1,054,886) |  | $ 1,880,000 |  | (188,000) |  |  | 637,114
Deemed dividend of preferred stock, shares | (1,880) |  | 1,880 |  |  |  |  |
Stock-based compensation |  |  |  |  | 645,823 |  |  | 645,823
Conversion of Series A preferred shares into common stock | $ (1,784,326) |  |  | $ 795 | 1,783,531 |  |  |
Conversion of Series A preferred shares into common stock, shares | (3,180) |  |  | 795,000 |  |  |  |
Conversion of Series B preferred shares into common stock |  | $ (273,468) |  | $ 302 | 273,166 |  |  |
Conversion of Series B preferred shares into common stock, shares |  | (392) |  | 301,923 |  |  |  |
Unrealized loss on investment in marketable debt securities |  |  |  |  |  |  | (923) | (923)
Net loss |  |  |  |  |  | (16,868,711) |  | (16,868,711)
Balance at Dec. 31, 2018 | $ 2,289,324 | $ 3,906,931 | $ 1,880,000 | $ 6,037 | 71,505,160 | (70,200,145) | (923) | 9,386,384
Balance, shares at Dec. 31, 2018 | 4,080 | 5,608 | 1,880 | 6,036,562 |  |  |  |
Payout to stockholders for fractional shares |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  | 438,248 |  |  | 438,248
Conversion of Series A preferred shares into common stock | $ (2,289,324) |  |  | $ 1,020 | 2,288,304 |  |  |
Conversion of Series A preferred shares into common stock, shares | (4,080) |  |  | 1,020,000 |  |  |  |
Conversion of Series B preferred shares into common stock |  |  |  | $ 2,890 | $ 2,615,085 |  |  |
Conversion of Series B preferred shares into common stock, shares |  |  |  | 2,890,396 |  |  |  |
Unrealized loss on investment in marketable debt securities |  |  |  |  |  |  |  | $ 923
Shareholders fractional adjustment, shares |  |  |  | (2) |  |  |  |
Issuance of common shares from ATM Agreement |  |  |  | $ 8,126 | $ 1,448,942 |  |  | $ 1,457,068
Issuance of common shares from ATM Agreement, shares |  |  |  | 8,126,375 |  |  |  |
Stock issuance costs of ATM Agreement |  |  |  |  | (49,626) |  |  | (49,626)
Conversion of Series C preferred shares into common stock |  |  | $ (1,640,000) | $ 1,000 | 1,639,000 |  |  |
Conversion of Series C preferred shares into common stock, shares |  |  | (1,640) | 1,000,000 |  |  |  |
Settlement of RSUs |  |  |  | $ 35 | (35) |  |  |
Settlement of RSUs, shares |  |  |  | 35,000 |  |  |  |
Change in unrealized loss on available-for-sale securities |  |  |  |  |  |  | 923 | 923
Change in unrealized loss on available-for-sale securities, shares |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  | (10,133,018) |  | (10,133,019)
Balance at Dec. 31, 2019 |  | $ 1,288,956 | $ 240,000 | $ 19,108 | $ 79,885,078 | $ (80,333,164) |  | $ 1,099,978
Balance, shares at Dec. 31, 2019 |  | 1,850 | 240 | 19,108,331 |  |  |  |

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