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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2019
Share-based Payment Arrangement [Abstract] |
Unrecognized compensation expense is expected to be recognized | At June 30, 2019, the Company had unrecognized compensation expense of $4,981 related to granted but unvested stock awards, which is to be recognized as follows:
Remainder of 2019 |  | $ | 1,304 |
2020 |  | 2,075 |
2021 |  | 1,040 |
2022 |  | 461 |
2023 |  | 101 |
Total |  | $ | 4,981 |
Summary of restricted stock activity | The following table summarizes restricted stock activity under the Plans from December 31, 2018 through June 30, 2019:
| Number of Shares |  | Weighted Average
Unvested, December 31, 2018 | 1,027 |  |  | $ | 9.83 |
Granted | 335 |  |  | $ | 2.54 |
Vested | (256 | ) |  | $ | 7.30 |
Forfeited | (18 | ) |  | $ | 6.38 |
Unvested, June 30, 2019 | 1,088 |  |  | $ | 9.31 |

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