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STOCK-BASED COMPENSATION (Tables) | 9 Months Ended
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Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
SCHEDULE OF STOCK BASED COMPENSATION | Stock Options: The following table summarizes stock option-based compensation for the three and nine months ended September 30, 2021 and 2020: SCHEDULE OF STOCK BASED COMPENSATION
|  | For the three months ended September 30, |  |  | For the nine months ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Research and development |  | $ | 432,000 |  |  | $ | 765,000 |  |  | $ | 1,649,000 |  |  | $ | 2,380,000 |
General and administrative |  |  | 955,000 |  |  |  | 484,000 |  |  |  | 2,148,000 |  |  |  | 1,703,000 |
Stock option-based compensation expense included in operating expense |  | $ | 1,387,000 |  |  | $ | 1,249,000 |  |  | $ | 3,797,000 |  |  | $ | 4,083,000 |
SCHEDULE OF WEIGHTED-AVERAGE ASSUMPTIONS TO ESTIMATE THE FAIR VALUE OF THE OPTIONS GRANTED | We used the following weighted-average assumptions to estimate the fair value of the options granted for the periods indicated: SCHEDULE OF WEIGHTED-AVERAGE ASSUMPTIONS TO ESTIMATE THE FAIR VALUE OF THE OPTIONS GRANTED
|  | For the three months ended September 30, |  |  | For the nine months ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Expected volatility |  |  | 92 | % |  |  | 110 | % |  |  | 97 | % |  |  | 111 | %
Expected term |  |  | 6.08 years |  |  |  | 6.25 years |  |  |  | 5.97 years |  |  |  | 6.25 years |
Risk-free interest rate |  |  | 0.97 | % |  |  | 0.16 | % |  |  | 0.98 | % |  |  | 0.29 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | % |  |  | 0 | % |  |  | 0 | %
SCHEDULE OF OPTIONS ACTIVITY | The following table summarizes the options granted for the periods indicated: SCHEDULE OF OPTIONS ACTIVITY
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | For the three months ended September 30, |  |  | For the nine months ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Options granted |  |  | 1,028,000 |  |  |  | 342,100 |  |  |  | 4,383,308 |  |  |  | 3,415,146 |
Weighted-average: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price |  | $ | 1.25 |  |  | $ | 3.08 |  |  | $ | 1.86 |  |  | $ | 2.38 |
Grant date fair value |  | $ | 0.94 |  |  | $ | 2.56 |  |  | $ | 1.44 |  |  | $ | 1.99 |
SUMMARY OF RESTRICTED COMMON STOCK | The following table summarizes the restricted common stock granted for the periods indicated: SUMMARY OF RESTRICTED COMMON STOCK
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | For the three months ended September 30, |  |  | For the nine months ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Restricted common stock granted |  |  | 767,934 |  |  |  | - |  |  |  | 2,743,668 |  |  |  | 1,083,313 |
Restricted common stock forfeited |  |  | (293,109 | ) |  |  | (265,080 | ) |  |  | (721,768 | ) |  |  | (265,080 | )
Weighted-average: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Grant date fair value-granted awards |  | $ | 1.24 |  |  | $ | - |  |  | $ | 1.77 |  |  | $ | 3.19 |
Grant date fair value-forfeited awards |  | $ | 1.93 |  |  | $ | 3.18 |  |  | $ | 1.90 |  |  | $ | 3.18 |
Restricted Stock [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
SCHEDULE OF STOCK BASED COMPENSATION | Restricted Common Stock: The following table summarizes restricted common stock compensation expense for the three and nine months ended September 30, 2021 and 2020: SCHEDULE OF STOCK BASED COMPENSATION
|  | For the three months ended September 30, |  |  | For the nine months ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Research and development |  | $ | 256,000 |  |  | $ | 89,000 |  |  | $ | 1,286,000 |  |  | $ | 561,000 |
General and administrative |  |  | 894,000 |  |  |  | 72,000 |  |  |  | 1,832,000 |  |  |  | 251,000 |
Restricted stock-based compensation expense included in operating expense |  | $ | 1,150,000 |  |  | $ | 161,000 |  |  | $ | 3,118,000 |  |  | $ | 812,000 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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