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Stock Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2021
Stock Based Compensation, Unamortized Stock-Based Compensation and Remaining Weighted Average Period |
|  | Stock-Based Compensation for the Three months ended |  |  | Stock-Based Compensation for the Six months ended |  |  | Unamortized Stock-Based Compensation |  |  | Remaining Weighted Average Period (years) |
June 30, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Stock |  | $ | 1,167 |  |  | $ | 2,223 |  |  | $ | 9,734 |  |  |  | 2.2 |
Unrestricted Stock |  |  | 107 |  |  |  | 217 |  |  |  | 367 |  |  |  | 0.9 |
Performance-Based Restricted Stock |  |  | 532 |  |  |  | 1,158 |  |  |  | 4,186 |  |  |  | 2.1 |
Total |  | $ | 1,806 |  |  | $ | 3,598 |  |  | $ | 14,287 |  |  |  |  |
June 30, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Stock |  | $ | 702 |  |  | $ | 1,478 |  |  | $ | 3,861 |  |  |  | 1.5 |
Unrestricted Stock |  |  | 118 |  |  |  | 241 |  |  |  | 403 |  |  |  | 0.9 |
Performance-Based Restricted Stock |  |  | 368 |  |  |  | 826 |  |  |  | 1,873 |  |  |  | 1.5 |
Total |  | $ | 1,188 |  |  | $ | 2,545 |  |  | $ | 6,137 |  |  |  |  |
Incentive Stock Option Plans | Incentive Stock Option Plans Activity for the three- and six-months ended June 30, 2021:
|  | Number of Shares |  |  | Weighted Average Price Per Share |
Balance outstanding, December 31, 2020 |  |  | 123,087 |  |  | $ | 11.48 |
Options exercised |  |  | (5,838 | ) |  |  | 11.49 |
Balance outstanding, March 31, 2021 |  |  | 117,249 |  |  |  | 11.48 |
Options exercised |  |  | (8,826 | ) |  |  | 11.35 |
Balance outstanding, June 30, 2021 |  |  | 108,423 |  |  | $ | 11.49 |
Activity for the three- and six-months ended June 30, 2020:
|  | Number of Shares |  |  | Weighted Average Price Per Share |
Balance outstanding, December 31, 2019 |  |  | 332,823 |  |  | $ | 9.14 |
Options exercised |  |  | (15,836 | ) |  |  | 8.83 |
Balance outstanding, March 31, 2020 |  |  | 316,987 |  |  |  | 9.16 |
Options exercised |  |  | (9,291 | ) |  |  | 8.27 |
Balance outstanding, June 30, 2020 |  |  | 307,696 |  |  | $ | 9.18 |
Performance Based Stock Options |
Incentive Stock Option Plans | Activity for the three- and six-months ended June 30, 2021:
|  | Number of Shares |  |  | Weighted Average Price Per Share |
Balance outstanding, December 31, 2020 |  |  | 114,658 |  |  | $ | 11.49 |
Options exercised |  |  | — |  |  |  | — |
Balance outstanding, March 31, 2021 and June 30, 2021 |  |  | 114,658 |  |  | $ | 11.49 |
Activity for the three- and six-months ended June 30, 2020:
|  | Number of Shares |  |  | Weighted Average Price Per Share |
Balance outstanding, December 31, 2019 |  |  | 120,782 |  |  | $ | 11.49 |
Options exercised |  |  | (3,035 | ) |  |  | 11.49 |
Balance outstanding, March 31, 2020 and June 30, 2020 |  |  | 117,747 |  |  | $ | 11.49 |
Restricted and Unrestricted Stock |
Summary of Non-Vested Shares | Restricted and Unrestricted Stock — A summary of non-vested shares as of, and for, the three- and six-months ended June 30, 2021, and 2020 is presented below:
|  | Six Months Ended June 30, 2021 |  |  | Six Months Ended June 30, 2020 |
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |  |  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Nonvested shares at December 31st |  |  | 820,624 |  |  | $ | 16.64 |  |  |  | 719,845 |  |  | $ | 17.67 |
Granted |  |  | — |  |  |  | — |  |  |  | 4,185 |  |  |  | 18.63 |
Vested |  |  | (197,615 | ) |  |  | 19.91 |  |  |  | (213,781 | ) |  |  | 16.18 |
Forfeited |  |  | (11,580 | ) |  |  | 16.95 |  |  |  | (14,715 | ) |  |  | 18.08 |
Nonvested shares at March 31st |  |  | 611,429 |  |  |  | 15.57 |  |  |  | 495,534 |  |  |  | 18.31 |
Granted |  |  | 289,757 |  |  |  | 20.10 |  |  |  | 43,168 |  |  |  | 13.45 |
Vested |  |  | (30,112 | ) |  |  | 16.72 |  |  |  | (37,958 | ) |  |  | 13.88 |
Forfeited |  |  | (11,231 | ) |  |  | 16.60 |  |  |  | (8,221 | ) |  |  | 18.64 |
Nonvested shares at June 30th |  |  | 859,843 |  |  | $ | 17.04 |  |  |  | 492,523 |  |  | $ | 18.22 |
Performance Based Restricted Stock |
Summary of Non-Vested Shares | Performance-Based Restricted Stock — A summary of non-vested performance-based shares as of, and for, the three- and six-months ended June 30, 2021, and 2020, respectively is presented below:
|  | Six Months Ended June 30, 2021 |  |  | Six Months Ended June 30, 2020 |
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |  |  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Nonvested shares at December 31st |  |  | 391,771 |  |  | $ | 16.26 |  |  |  | 345,432 |  |  | $ | 16.92 |
Additional granted based on performance achievement |  |  | 71,180 |  |  |  | 20.53 |  |  |  | 76,445 |  |  |  | 16.56 |
Vested |  |  | (175,087 | ) |  |  | 19.78 |  |  |  | (184,785 | ) |  |  | 15.87 |
Forfeited |  |  | (505 | ) |  |  | 19.26 |  |  |  | (3,759 | ) |  |  | 17.23 |
Nonvested shares at March 31st |  |  | 287,359 |  |  |  | 15.16 |  |  |  | 233,333 |  |  |  | 17.63 |
Granted |  |  | 102,043 |  |  |  | 20.03 |  |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |  |  |  | (2,268 | ) |  |  | 18.00 |
Nonvested shares at June 30th |  |  | 389,402 |  |  | $ | 16.44 |  |  |  | 231,065 |  |  | $ | 17.63 |

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