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Equity-based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2022
Equity-based Compensation |
Schedule of fair value of options granted using the Black-Scholes option pricing model | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Nine Months Ended September 30,
​ |  | 2022 |  | 2021
Fair value of common stock | ​ | $1.88 – $3.05 | ​ | $1.75 – $6.15
Expected volatility | ​ | 91.09% – 92.72% | ​ | 100.82% – 101.83%
Risk-free interest rate | ​ | 1.87% – 3.40% | ​ | 0.67% – 1.06%
Dividend yield | ​ | 0.00% | ​ | 0.00%
Expected term (years) | ​ | 5.50 – 6.35 | ​ | 5.00 – 6.22
Summary of activity for options | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Options Outstanding
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Weighted- | ​ | Aggregate | ​ | Average
​ | ​ | ​ | ​ | Average | ​ | Intrinsic | ​ | Remaining
​ | ​ | Number of | ​ | Exercise | ​ | Value | ​ | Contractual Life
​ |  | Options |  | Price |  | (in 000’s) |  | (In Years)
Balance, December 31, 2021 |  | 5,640,438 | ​ | $ | 4.19 |  | $ | 12,002 |  | 8.0
Options granted |  | 449,270 | ​ | $ | 2.50 |  | ​ | ​ |  | ​
Options exercised |  | (1,739,465) | ​ | $ | 0.92 |  | ​ | ​ |  | ​
Options forfeited |  | (616,334) | ​ | $ | 5.73 |  | ​ | ​ |  | ​
Options expired |  | (463) | ​ | $ | 0.84 |  | ​ | ​ |  | ​
Balance, September 30, 2022 |  | 3,733,446 | ​ | $ | 5.32 | ​ | $ | 1,652 |  | 6.7
Exercisable as of September 30, 2022 |  | 2,163,738 | ​ | $ | 4.57 | ​ | $ | 1,300 | ​ | 4.6
Schedule of total equity-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Research and development | ​ | $ | 86 | ​ | $ | (4) | ​ | $ | 402 | ​ | $ | 30
General and administrative | ​ |  | 691 | ​ |  | 76 | ​ |  | 2,268 | ​ |  | 234
Total equity-based compensation | ​ | $ | 777 | ​ | $ | 72 | ​ | $ | 2,670 | ​ | $ | 264

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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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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