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Stock Options and Restricted Stock Units (Tables) | 12 Months Ended
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Dec. 31, 2022
Stock Options and Restricted Stock Units |
Summary of restricted stock units issued |
|  | Number of RSUs Outstanding |  |  | Weighted Average Grant Date Fair Value |  |  | Aggregate Intrinsic Value |
Balance on December 31, 2020 |  |  | 19,000 |  |  | $ | 10.78 |  |  | $ | 332,690 |
Units granted |  |  | 17,765 |  |  |  | 25.92 |  |  |  | 460,504 |
Units vested/issued |  |  | (19,000 | ) |  |  | 10.78 |  |  |  | 464,400 |
Units forfeited |  |  | — |  |  |  | — |  |  |  | — |
Balance on December 31, 2021 |  |  | 17,765 |  |  | $ | 25.92 |  |  | $ | 523,197 |
Units granted |  |  | 48,240 |  |  |  | 24.99 |  |  |  | 1,205,525 |
Units vested/issued |  |  | (15,265 | ) |  |  | 26.05 |  |  |  | 377,981 |
Units forfeited |  |  | — |  |  |  | — |  |  |  | — |
Balance on December 31, 2022 |  |  | 50,740 |  |  | $ | 25.00 |  |  | $ | 1,268,500 |
Schedule of Black-Scholes option pricing |
|  | Year Ended December 31,2022 |
Expected dividend yield |  |  | 0 | %
Expected stock price volatility |  |  | 46 | %
Weighted-average risk-free interest rate |  |  | 1.68 | %
Weighted-average expected life of options (in years) |  |  | 6.29 |
summarizes information about stock options outstanding and exercisable |
|  | Options Outstanding |  |  | Options Exercisable |
Exercise Price Range |  | Number |  |  | Weighted Average Remaining Contractual Life (in Years) |  |  | Weighted Average Exercise Price |  |  | Number |
$0.01 - 8.00 |  |  | 7,500 |  |  |  | 2.17 |  |  |  | 7.12 |  |  |  | 7,500 |
$8.01 - 11.00 |  |  | 3,500 |  |  |  | 4.57 |  |  |  | 10.11 |  |  |  | 3,500 |
$11.01 - 16.00 |  |  | 18,000 |  |  |  | 5.53 |  |  |  | 13.12 |  |  |  | 18,000 |
$16.01 - 27.00 |  |  | 38,000 |  |  |  | 8.30 |  |  |  | 24.19 |  |  |  | 8,000 |
$27.01 – 27.71 |  |  | 14,250 |  |  |  | 9.05 |  |  |  | 27.71 |  |  |  | — |
Total |  |  | 81,250 |  |  |  | 7.13 |  |  |  | 20.31 |  |  |  | 37,000 |
Summary of stock options activity |
|  | Number of Options Outstanding |  |  | Range of Exercise Price |  |  | Weighted Average Exercise Price |  |  | Aggregate Intrinsic Value |
Balance on December 31, 2020 |  |  | 75,230 |  |  | $ | 6.80 – 17.40 |  |  | $ | 12.16 |  |  | $ | 402,275 |
Options granted |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Options exercised |  |  | (23,563 | ) |  |  | 6.80 – 17.40 |  |  |  | 13.01 |  |  |  | 267,300 |
Options forfeited/cancelled |  |  | (4,500 | ) |  |  | 9.26 – 13.21 |  |  |  | 11.45 |  |  |  | 62,385 |
Balance on December 31, 2021 |  |  | 47,167 |  |  | $ | 6.80 – 17.40 |  |  | $ | 11.81 |  |  | $ | 832,254 |
Options granted |  |  | 50,250 |  |  |  | 26.00 – 27.71 |  |  |  | 26.69 |  |  |  | — |
Options exercised |  |  | (10,000 | ) |  |  | 7.76 – 13.21 |  |  |  | 9.12 |  |  |  | 185,500 |
Options forfeited/cancelled |  |  | (6,167 | ) |  |  | 9.26 – 27.71 |  |  |  | 27.71 |  |  |  | — |
Balance on December 31, 2022 |  |  | 81,250 |  |  | $ | 6.80 – 27.71 |  |  | $ | 20.17 |  |  |  | 462,390 |
Schedule of unvested stock options | The following is a summary of unvested stock options during the year ended December 31, 2022 and 2021:
|  | Number of Options Outstanding |  |  | Weighted Average Exercise Price |  |  | Weighted Average Grant Date Fair Value |
Balance on December 31, 2020 |  |  | 14,500 |  |  | $ | 12.87 |  |  | $ | 5.47 |
Options vested |  |  | (14,500 | ) |  |  | 12.87 |  |  |  | 5.47 |
Options forfeited/cancelled |  |  | — |  |  |  | — |  |  |  | — |
Balance on December 31, 2021 |  |  | — |  |  |  | 12.87 |  |  |  | 5.47 |
Options granted |  |  | 50,250 |  |  |  | 26.69 |  |  |  | 12.54 |
Options vested |  |  | — |  |  |  | — |  |  |  | — |
Options forfeited/cancelled |  |  | (6,000 | ) |  |  | 27.71 |  |  |  | 13.53 |
Balance on December 31, 2022 |  |  | 44,250 |  |  | $ | 26.55 |  |  | $ | 12.41 |

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