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Stock Options and Restricted Stock Units (Tables) | 12 Months Ended
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Dec. 31, 2021
Stock Options and Restricted Stock Units |
Summary of stock options activity |
|  | Number of Options Outstanding |  |  | Range of Exercise Price |  |  | Weighted Average Exercise Price |  |  | Aggregate Intrinsic Value |
Balance on December 31, 2019 |  |  | 127,563 |  |  | $ | 6.80 – 17.40 |  |  | $ | 12.63 |  |  | $ | 142,818 |
Options granted |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Options exercised |  |  | (36,250 | ) |  | 7.76 – 17.40 |  |  |  | 12.47 |  |  |  | 295,921 |
Options forfeited/cancelled |  |  | (16,083 | ) |  | 9.26 – 17.40 |  |  |  | 15.17 |  |  |  | 22,682 |
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 |
Schedule of unvested stock options |
|  | Number of Options Outstanding |  |  | Weighted Average Exercise Price |  |  | Weighted Average Grant Date Fair Value |
Balance on December 31, 2019 |  |  | 29,000 |  |  | $ | 12.87 |  |  | $ | 5.47 |
Options vested |  |  | (14,500 | ) |  |  | 12.87 |  |  |  | 5.47 |
Options forfeited/cancelled |  |  | - |  |  |  | - |  |  |  | - |
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 |  |  | - |  |  | $ | - |  |  | $ | - |
Schedule of stock options |
|  | Options Outstanding |  |  | Options Exercisable |
Exercise Price Range |  | Number |  |  | Weighted Average Remaining Contractual Life (in Years) |  |  | Weighted Average Exercise Price |  |  | Number |
$0.01 - 7.00 |  |  | 5,000 |  |  |  | 3.89 |  |  | $ | 6.80 |  |  |  | 5,000 |
$7.01 - 8.00 |  |  | 10,000 |  |  |  | 1.74 |  |  | $ | 7.76 |  |  |  | 10,000 |
$8.01 - 12.00 |  |  | 3,667 |  |  |  | 5.45 |  |  | $ | 10.07 |  |  |  | 3,667 |
$12.01 - 15.00 |  |  | 20,500 |  |  |  | 6.61 |  |  | $ | 13.13 |  |  |  | 20,500 |
$15.01 - 17.40 |  |  | 8,000 |  |  |  | 6.42 |  |  | $ | 17.40 |  |  |  | 8,000 |
Total |  |  | 47,167 |  |  |  | 5.16 |  |  | $ | 11.81 |  |  |  | 47,167 |
Summary of restricted stock units issued |
|  | Number of RSUs Outstanding |  |  | Weighted Average Grant Date Fair Value |  |  | Aggregate Intrinsic Value |
Balance on December 31, 2019 |  |  | 48,002 |  |  | $ | 11.55 |  |  | $ | 554,388 |
Units granted |  |  | 18,000 |  |  |  | 10.67 |  |  |  | 192,060 |
Units vested/issued |  |  | (32,002 | ) |  |  | 11.61 |  |  |  | 353,948 |
Units forfeited |  |  | (15,000 | ) |  |  | 11.35 |  |  |  | 156,665 |
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 |

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