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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2021
Share-based Payment Arrangement [Abstract] |
Unrecognized compensation expense is expected to be recognized | At March 31, 2021, the Company had unrecognized compensation expense of $3,039 related to granted but unvested stock awards, which is to be recognized as follows:
Remainder of 2021 |  | $ | 1,640 |
2022 |  | 868 |
2023 |  | 518 |
2024 |  | 11 |
2025 |  | 2 |
Total |  | $ | 3,039 |
Summary of restricted stock activity | The following table summarizes restricted stock activity under the Plans from December 31, 2020 through March 31, 2021:
| Number of Shares |  | Weighted Average
Unvested, December 31, 2020 | 1,886 |  |  | $ | 5.14 |
Granted | 14 |  |  | $ | 3.07 |
Vested | (158) |  |  | $ | 9.73 |
Forfeited | (112) |  |  | $ | 6.58 |
Unvested, March 31, 2021 | 1,630 |  |  | $ | 3.73 |

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- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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