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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2022
Stock-Based Compensation |
Schedule of assumptions in its application of the Black-Scholes option pricing model for grants | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2022 |  | 2021
​ | ​ | ​ | ​ | ​
Weighted-average risk-free interest rate | ​ | 1.35% - 2.44% | ​ | 1.11% - 1.71%
Expected term (in years) | ​ | 5.00 - 10 years | ​ | 5.83 - 10 years
Expected dividend yield | ​ | 0% | ​ | 0%
Expected volatility | ​ | 65.96% - 78.12% | ​ | 69.01% - 80.99%
Summary of stock option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ | ​ | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | ​ | ​
​ | ​ | Number of | ​ | Exercise Price | ​ | Contractual | ​ | Aggregate
​ | ​ | Options | ​ | per Share |  | Term (in Years) | ​ | Intrinsic Value
​ |  |  |  | ​ |  |  |  |  | ​ |
Outstanding at of December 31, 2021 |  | 2,859,544 | ​ | $ | 6.55 |  | 8.30 |  | ​ |
Granted |  | 942,025 | ​ | ​ | 10.10 | ​ | ​ |  | ​ |
Exercised |  | (63,100) | ​ | ​ | 3.01 | ​ | ​ |  | ​ |
Cancelled |  | (22,513) | ​ | ​ | 7.00 | ​ | ​ |  | ​ |
Outstanding at March 31, 2022 |  | 3,715,956 | ​ | $ | 7.50 | ​ | 8.48 | ​ | $ | 5,289,348
​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Vested and exercisable at March 31, 2022 |  | 1,163,564 | ​ | $ | 3.24 |  | 7.08 | ​ | $ | 3,879,198
Vested and expected to vest at March 31, 2022 | ​ | 3,715,956 | ​ | $ | 7.50 |  | 8.48 | ​ | $ | 5,289,348
Summary of recognized share-based compensation expense recognized | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, | ​
​ |  | 2022 |  | 2021 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of revenue | ​ | $ | 4,630 | ​ | $ | 22,515 | ​
Research and development | ​ |  | 432,719 | ​ |  | 105,703 | ​
General and administrative | ​ |  | 460,301 | ​ |  | 54,007 | ​
Total | ​ | $ | 897,650 | ​ | $ | 182,225 | ​

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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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