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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Stock-Based Compensation |
Schedule of assumptions in its application of the Black-Scholes option pricing model for grants | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2021 |  | 2020
​ | ​ | ​ | ​ | ​
Weighted-average risk-free interest rate | ​ | 0.89% - 1.71% | ​ | 0.36% - 1.45%
Expected term (in years) | ​ | 5.83 - 10 years | ​ | 5.92 - 10 years
Expected dividend yield | ​ | 0% | ​ | 0%
Expected volatility | ​ | 66.76% - 80.99% | ​ | 67.30% - 80.85%
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, 2020 |  | 1,801,263 | ​ | $ | 3.01 |  | ​ |  | ​ |
Granted |  | 1,452,462 | ​ | ​ | 10.07 | ​ | ​ |  | ​ |
Exercised |  | (117,847) | ​ | ​ | 3.01 | ​ | ​ |  | ​ |
Cancelled |  | (276,334) | ​ | ​ | 3.58 | ​ | ​ |  | ​ |
Outstanding at December 31, 2021 |  | 2,859,544 | ​ | $ | 6.55 | ​ | 8.30 | ​ | $ | 27,615,466
​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Vested and exercisable at December 31, 2021 |  | 1,102,543 | ​ | $ | 3.01 |  | 7.14 | ​ | $ | 14,507,723
Vested and expected to vest at December 31, 2021 | ​ | 2,859,544 | ​ | $ | 6.55 |  | 8.30 | ​ | $ | 27,615,466
Summary of recognized share-based compensation expense recognized | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, | ​
​ |  | 2021 |  | 2020 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of revenue | ​ | $ | 103,329 | ​ | $ | 108,027 | ​
Research and development | ​ |  | 768,679 | ​ |  | 503,111 | ​
General and administrative | ​ |  | 930,615 | ​ |  | 475,631 | ​
Total | ​ | $ | 1,802,623 | ​ | $ | 1,086,769 | ​

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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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