Condensed Consolidated Statements of Stockholders’ Equity (Deficit) - USD ($)
|
Total |
Series A Preferred Stock |
Common Stock |
Additional Paid-in Capital |
Accumulated Deficit |
| Balance (in shares) at Dec. 31, 2018 |
|
|
26,088,820
|
|
|
| Balance at Dec. 31, 2018 |
$ (3,659,064)
|
|
$ 2,609
|
$ 39,854,297
|
$ (43,515,970)
|
| Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Issuance of common stock and warrants (in shares) |
|
|
4,886,782
|
|
|
| Issuance of common stock and warrants |
11,475,255
|
|
$ 489
|
11,474,766
|
|
| Allocation of warrants to liabilities |
(1,970,000)
|
|
|
(1,970,000)
|
|
| Share-based compensation |
526,000
|
|
|
526,000
|
|
| Stock issuance costs |
(319,819)
|
|
|
(319,819)
|
|
| Issuance of RSUs (in shares) |
|
|
90,000
|
|
|
| Issuance of RSUs |
0
|
|
$ 9
|
(9)
|
|
| Net loss |
(4,434,765)
|
|
|
|
(4,434,765)
|
| Balance (in shares) at Mar. 31, 2019 |
|
|
31,065,602
|
|
|
| Balance at Mar. 31, 2019 |
1,617,607
|
|
$ 3,107
|
49,565,235
|
(47,950,735)
|
| Balance (in shares) at Dec. 31, 2018 |
|
|
26,088,820
|
|
|
| Balance at Dec. 31, 2018 |
(3,659,064)
|
|
$ 2,609
|
39,854,297
|
(43,515,970)
|
| Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Beneficial conversion feature |
0
|
|
|
|
|
| Net loss |
(8,923,005)
|
|
|
|
|
| Balance (in shares) at Jun. 30, 2019 |
|
|
35,883,953
|
|
|
| Balance at Jun. 30, 2019 |
5,006,309
|
|
$ 3,589
|
57,441,695
|
(52,438,975)
|
| Balance (in shares) at Mar. 31, 2019 |
|
|
31,065,602
|
|
|
| Balance at Mar. 31, 2019 |
1,617,607
|
|
$ 3,107
|
49,565,235
|
(47,950,735)
|
| Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Issuance of common stock and warrants (in shares) |
|
|
4,318,272
|
|
|
| Issuance of common stock and warrants |
8,744,501
|
|
$ 432
|
8,744,069
|
|
| Allocation of warrants to liabilities |
(1,360,000)
|
|
|
(1,360,000)
|
|
| Share-based compensation |
852,000
|
|
|
852,000
|
|
| Stock issuance costs |
(389,623)
|
|
|
(389,623)
|
|
| Exercise of stock options (in shares) |
|
|
100,079
|
|
|
| Exercise of stock options |
30,064
|
|
$ 10
|
30,054
|
|
| Issuance of RSUs (in shares) |
|
|
400,000
|
|
|
| Issuance of RSUs |
0
|
|
$ 40
|
(40)
|
|
| Net loss |
(4,488,240)
|
|
|
|
(4,488,240)
|
| Balance (in shares) at Jun. 30, 2019 |
|
|
35,883,953
|
|
|
| Balance at Jun. 30, 2019 |
5,006,309
|
|
$ 3,589
|
57,441,695
|
(52,438,975)
|
| Balance (in shares) at Dec. 31, 2019 |
|
0
|
39,477,667
|
|
|
| Balance at Dec. 31, 2019 |
$ (9,614,014)
|
$ 0
|
$ 3,948
|
60,946,816
|
(70,564,778)
|
| Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Warrant exchange (in shares) |
1,847,308.8
|
|
|
|
|
| Warrant exchange |
$ 690,839
|
|
$ 185
|
690,654
|
|
| Share-based compensation |
276,000
|
|
|
276,000
|
|
| Stock issuance costs |
(300,000)
|
|
|
(300,000)
|
|
| Net loss |
(3,603,001)
|
|
|
|
(3,603,001)
|
| Balance (in shares) at Mar. 31, 2020 |
|
0
|
41,324,976
|
|
|
| Balance at Mar. 31, 2020 |
(12,550,176)
|
$ 0
|
$ 4,133
|
61,613,470
|
(74,167,779)
|
| Balance (in shares) at Dec. 31, 2019 |
|
0
|
39,477,667
|
|
|
| Balance at Dec. 31, 2019 |
(9,614,014)
|
$ 0
|
$ 3,948
|
60,946,816
|
(70,564,778)
|
| Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Beneficial conversion feature |
(207,632)
|
|
|
|
|
| Net loss |
(48,200,537)
|
|
|
|
|
| Balance (in shares) at Jun. 30, 2020 |
|
0
|
136,232,885.8
|
|
|
| Balance at Jun. 30, 2020 |
3,067,286
|
$ 0
|
$ 13,625
|
121,818,976
|
(118,765,315)
|
| Balance (in shares) at Mar. 31, 2020 |
|
0
|
41,324,976
|
|
|
| Balance at Mar. 31, 2020 |
(12,550,176)
|
$ 0
|
$ 4,133
|
61,613,470
|
(74,167,779)
|
| Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Issuance of common stock and warrants (in shares) |
|
|
42,695,948
|
|
|
| Issuance of common stock and warrants |
28,754,026
|
|
$ 4,270
|
28,749,756
|
|
| Issuance of preferred stock and warrants (FN-1) (in shares) |
|
382,779
|
|
|
|
| Issuance of preferred stock and warrants (FN-1) |
22,560,994
|
$ 38
|
|
22,560,956
|
|
| Share-based compensation |
4,021,000
|
|
|
4,021,000
|
|
| Exercise of warrants (in shares) |
|
|
12,230,418
|
|
|
| Exercise of warrants |
1,219,001
|
|
$ 1,223
|
1,217,778
|
|
| Inducement expense |
6,467,048
|
|
|
6,467,048
|
|
| Stock issuance costs |
(3,589,703)
|
|
|
(3,589,703)
|
|
| Conversion of convertible debt and accrued interest (in shares) |
|
|
1,287,696
|
|
|
| Conversion of convertible debt and accrued interest |
575,000
|
|
$ 129
|
574,871
|
|
| Beneficial conversion feature |
207,632
|
|
|
207,632
|
|
| Conversion of preferred stock to common stock (in shares) |
|
(382,779)
|
38,277,900
|
|
|
| Conversion of preferred stock to common stock |
0
|
$ (38)
|
$ 3,828
|
(3,790)
|
|
| Issuance of RSUs (in shares) |
|
|
415,948
|
|
|
| Issuance of RSUs |
0
|
|
$ 42
|
(42)
|
|
| Net loss |
(44,597,536)
|
|
|
|
(44,597,536)
|
| Balance (in shares) at Jun. 30, 2020 |
|
0
|
136,232,885.8
|
|
|
| Balance at Jun. 30, 2020 |
$ 3,067,286
|
$ 0
|
$ 13,625
|
$ 121,818,976
|
$ (118,765,315)
|