Stockholders' Equity and Stock-Based Compensation (Tables)
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6 Months Ended |
Jun. 30, 2020 |
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| Stockholders' Equity and Stock-Based Compensation (Tables) |
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| Schedule of Warrants Outstanding |
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|
| June 30,
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| December 31,
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| Outstanding Warrants
|
| 2020
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| 2019
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| Issued to investors on October 25, 2013, entitling the holders to purchase 20,833 common shares in the Company at an exercise price of $138.00 per common share up to and including April 24, 2021. In 2016, all the remaining warrant holders agreed to new warrant terms, which excluded any potential net cash settlement provisions in exchange for a reduced exercise price of $75.00 per share.
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| 13,665 |
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| 13,665 |
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| Issued to investors on November 17, 2014, entitling the holders to purchase 45,577 common shares in the Company at an exercise price of $138.60 per common share up to and including May 16, 2022. On June 30, 2016, the warrant holders agreed to new warrant terms, which excluded any potential net cash settlement provisions in order to classify them as equity in exchange for a reduced exercise price of $75.00 per share.
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| 45,577 |
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| 45,577 |
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| Issued to an investment bank and subsequently transferred to a principal of the investment bank regarding the Series B Preferred Stock investment on January 30, 2018, entitling the holder to purchase 11,119 common shares in the Company at an exercise price of $18.00 per share, up to and including January 30, 2021.
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|
| 11,119 |
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|
| 11,119 |
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| Total
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|
| 70,361 |
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|
| 70,361 |
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| Schedule of Share-based Compensation, Stock Options, Activity |
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|
| Three Months Ended June 30,
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|
| Six Months Ended June 30,
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|
|
| 2020
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|
| 2019
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| 2020
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| 2019
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|
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| Research and development expenses
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|
| — |
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| $ | 113,488 |
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|
| — |
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| $ | 283,622 |
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| General and administrative expenses
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| $ | 6,085 |
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|
| 123,784 |
|
| $ | 12,170 |
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|
| 288,663 |
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| Total stock-based compensation expense
|
| $ | 6,085 |
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| $ | 237,272 |
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| $ | 12,170 |
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| $ | 572,285 |
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|
| Schedule of Stock option transactions of the employees |
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| Options Outstanding
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|
| Weighted
Average
Exercise Price
|
|
| Weighted-
Average Grant Date Fair Value
|
|
|
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|
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|
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|
| Beginning of the period – January 1, 2020
|
|
| 518,551 |
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| $ | 21.99 |
|
| $ | 15.89 |
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| Granted
|
|
| — |
|
|
| — |
|
|
| — |
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| Exercised
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|
| (6,548 | ) |
|
| 3.82 |
|
|
| 2.59 |
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| Forfeited
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|
| (1,844 | ) |
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| 10.80 |
|
|
| 8.33 |
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| Expired
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|
| (1,397 | ) |
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| 519.00 |
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|
| 467.31 |
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| End of the period – June 30, 2020
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|
| 508,762 |
|
| $ | 20.90 |
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| $ | 14.85 |
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|
|
|
|
|
|
|
|
|
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|
|
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| Options exercisable
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|
| 425,118 |
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| $ | 22.90 |
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| $ | 16.15 |
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|
| Schedule of Non-Vested Options, Activity |
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|
| Shares
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|
| Weighted
Average
Exercise Price
|
|
| Weighted-
Average Fair
Value
Grant Date
|
|
|
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| Non-vested – December 31, 2020
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|
| 84,873 |
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| $ | 10.73 |
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| $ | 5.15 |
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|
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| Granted
|
|
| — |
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| — |
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| — |
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| Vested
|
|
| — |
|
|
| — |
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|
| — |
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| Forfeited
|
|
| (1,229 | ) |
|
| 10.80 |
|
|
| 8.33 |
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| Non-vested – June 30, 2020
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|
| 83,644 |
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| $ | 10.73 |
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| $ | 5.10 |
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| Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award |
| |
| Stock Options Outstanding
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| Stock Options Vested
| |
| |
| Weighted
| | | | | | | |
| Weighted
| | | | | | | |
| |
| Average
| | | | | | | |
| Average
| | | | | | | |
| |
| Remaining
| | | | |
| Weighted
| |
| Remaining
| | | | |
| Weighted
| |
| |
| Contractual
| |
| Number
| |
| Average
| |
| Contractual
| |
| Number
| |
| Average
| |
| |
| Life
| |
| of
| |
| Exercise
| |
| Life
| |
| of
| |
| Exercise
|
|
| Exercise Prices
|
| -Years
| |
| Awards
| |
| Price
| |
| -Years
| |
| Awards
| |
| Price
| |
| | | | | | | | | | | | | | | | | | | | |
|
| $
| 3.82-$12.48
| |
| 8.66
| | |
| 217,545
| |
| $
| 8.17
| | |
| 8.93
| | |
| 136,533
| |
| $
| 6.69
|
|
| $
| 12.49-$24.00
| |
| 7.12
| | |
| 199,790
| |
| $
| 14.19
| | |
| 7.11
| | |
| 197,158
| |
| $
| 14.21
|
|
| $
| 24.01-$72.00
| |
| 5.44
| | |
| 65,333
| |
| $
| 55.07
| | |
| 5.44
| | |
| 65,333
| |
| $
| 55.07
|
|
| $
| 72.01-$240.00
| |
| 4.87
| | |
| 24,526
| |
| $
| 75.59
| | |
| 4.87
| | |
| 24,526
| |
| $
| 75.59
|
|
| $
| 240.01-$492.00
| |
| 0.56
| | |
| 1,568
| |
| $
| 361.43
| | |
| 0.56
| | |
| 1,568
| |
| $
| 361.43
| |
|
| Total
| |
| 7.43
| | |
| 508,762
| |
| $
| 20.90
| | |
| 7.28
| | |
| 425,118
| |
| $
| 22.90
| |
|