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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |
Schedule of significant assumptions | The significant assumptions used in the Monte Carlo simulation are presented in the following table.
|  | Year ended December 31,
|  | 2019
Expected volatility |  | 71.05 | %
Expected life (years) |  | 2.0
Risk-free interest rate |  | 1.63 | %
Unrecognized compensation expense is expected to be recognized | At December 31, 2020, the Company had unrecognized compensation expense of $3,691 related to granted but unvested stock awards. That expense is expected to be recognized as follows:
Year Ended December 31, |
2021 | $ | 2,317 |
2022 | 864 |
2023 | 510 |
| $ | 3,691 |
Summary of restricted stock activity | The following table summarizes restricted stock activity under the 2016 Plan from January 1, 2019 through December 31, 2020:
| Number of Shares |  | Weighted Average
Unvested, January 1, 2019 | 1,027 |  |  | $ | 9.83 |
Granted | 1,884 |  |  | $ | 2.58 |
Vested | (261) |  |  | $ | 8.76 |
Forfeiture | (32) |  |  | $ | 5.85 |
Unvested, December 31, 2019 | 2,618 |  |  | $ | 6.91 |
Granted | — |  |  | $ | — |
Vested | (675) |  |  | $ | 9.46 |
Forfeiture | (57) |  |  | $ | 13.16 |
Unvested December 31, 2020 | 1,886 |  |  | $ | 5.14 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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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