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v3.23.1

Stock Awards and Stock-based Compensation (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Stock Awards and Stock-Based Compensation |  |
Schedule of stock options activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | ​ | ​
​ |  | Options |  | Exercise Price |  | Contractual |  | Aggregate
​ | ​ | Outstanding | ​ | Per Share | ​ | Life (years) | ​ | Intrinsic Value
Balance as of January 1, 2022 |  | 395,002 | ​ | $ | 6.40 |  | 2.42 | ​ | $ | 5,365,737
Options granted |  | 7,443 | ​ |  | 3.20 |  | ​ | ​ |  | ​
Options exercised |  | (15,121) | ​ |  | 6.30 |  | ​ | ​ |  | ​
Options canceled and forfeited | ​ | (215) | ​ | ​ | 4.40 | ​ | ​ | ​ | ​ | ​
Balance as of December 31, 2022 | ​ | 387,109 | ​ | ​ | 6.40 | ​ | 1.45 | ​ | ​ | 0
Options granted | ​ | 2,647 | ​ | ​ | 3.01 | ​ | ​ | ​ | ​ | ​
Options exercised | ​ | (1,230) | ​ | ​ | 3.25 | ​ | ​ | ​ | ​ | ​
Options canceled and forfeited |  | (756) | ​ |  | 7.94 |  | ​ | ​ |  | ​
Balance as of March 31, 2023 |  | 387,770 | ​ |  | 6.37 |  | 1.21 | ​ |  | 0
Options vested and exercisable as of March 31, 2023 |  | 387,770 | ​ | $ | 6.37 |  | 1.21 | ​ | $ | 0
​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | ​ | ​
​ | ​ | Options | ​ | Exercise Price | ​ | Contractual | ​ | Aggregate
​ | ​ | Outstanding | ​ | Per Share | ​ | Life (years) | ​ | Intrinsic Value
Balance as of January 1, 2021 | ​ | ​ | 346,806 | ​ | $ | 6.30 |  | 3.21 | ​ | $ | 527,450
Options granted | ​ |  | 52,347 | ​ |  | 7.55 |  |  | ​ |  |
Options exercised | ​ |  | — | ​ |  | — |  |  | ​ |  |
Options canceled and forfeited | ​ |  | (4,151) | ​ |  | 3.85 |  |  | ​ |  |
Balance as of December 31, 2021 | ​ | ​ | 395,002 | ​ | ​ | 6.40 |  | 2.42 | ​ | ​ | 5,365,737
Options granted | ​ | ​ | 7,443 | ​ | ​ | 3.20 | ​ | ​ | ​ | ​ | ​
Options exercised | ​ | ​ | (15,121) | ​ | ​ | 6.30 | ​ | ​ | ​ | ​ | ​
Options canceled and forfeited | ​ | ​ | (215) | ​ | ​ | 4.40 | ​ | ​ | ​ | ​ | ​
Balance as of December 31, 2022 | ​ | ​ | 387,109 | ​ | ​ | 6.40 | ​ | 1.45 | ​ | ​ | 0
Options vested and exercisable as of December 31, 2022 | ​ | ​ | 387,109 | ​ | $ | 6.40 |  | 1.45 | ​ | $ | 0
​
Schedule of outstanding RSU activity | ​
​ | ​ | ​
​ |  | RSU Outstanding Number of Shares
Balance as of January 1, 2022 | ​ | 126,900
Granted | ​ | 211,700
Vested (issued) | ​ | (46,036)
Forfeited | ​ | —
Balance as of December 31, 2022 | ​ | 292,564
Granted | ​ | 4,627
Vested (issued) | ​ | —
Forfeited | ​ | (20,601)
Balance as of March 31, 2023 | ​ | 276,590
​ | ​
​ | ​ | ​
​ |  | RSU Outstanding Number of Shares
Balance as of January 1, 2021 |  | —
Granted |  | 126,900
Vested (issued) |  | —
Forfeited |  | —
Balance as of December 31, 2021 |  | 126,900
Granted |  | 211,700
Vested (issued) |  | (46,036)
Forfeited |  | —
Balance as of December 31, 2022 |  | 292,564
​
Schedule of stock options valuation assumptions | ​
​ | ​ | ​ | ​ | ​
Fair value of Class A Common Stock |  | $ | 2.65—3.57 | ​
Exercise price | ​ | $ | 2.93 — 3.09 | ​
Risk free interest rate | ​ | ​ | 3.91 — 4.23 | %
Expected dividend yield | ​ | ​ | 0.00 | %
Expected volatility | ​ | ​ | 92.90 — 96.45 | %
Expected term | ​ | ​ | 3 Years | ​
​ | The following assumptions were used to calculate the fair value of options granted during the year ended December 31, 2022:
​ | ​ | ​ | ​
Fair value of Class A Shares of Common Stock | $ | 3.05 – 22.90 | ​
Exercise price | $ | 3.10 – 3.75 | ​
Risk free interest rate |  | 1.25 - 4.38 | %
Expected dividend yield |  | 0 | %
Expected volatility |  | 52.80 – 104.50 | %
Expected term |  | 3 Years | ​
​
Schedule of stock-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended March 31,
​ |  | 2023 |  | 2022
Cost of services | ​ | $ | 494 | ​ | $ | 2,174
Research and development | ​ | ​ | 18,855 | ​ | ​ | 59,860
Selling, general, and administrative | ​ | ​ | 40,225 | ​ | ​ | 225,752
Total stock-based compensation expense | ​ | $ | 59,574 | ​ | $ | 287,786
| ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the years ended December 31,
​ | ​ | 2022 |  | 2021
Cost of services provided | ​ | $ | 21,721 | ​ | $ | 160,504
Research and development expense | ​ |  | 292,084 | ​ |  | 493,336
Selling, general, and administrative | ​ |  | 2,085,258 | ​ |  | 2,126,799
Total stock-based compensation expense | ​ | $ | 2,399,063 | ​ | $ | 2,780,639

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