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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2019
Share-based Payment Arrangement [Abstract] |
Schedule of significant assumptions | The significant assumptions used in the Monte Carlo simulation are presented in the following table.
| Years ended December 31, |  |
| 2019 |  | 2018
Expected volatility | 71.05 | % |  | 67.13 | %
Expected life (years) | 2.0 |  | 2.7
Risk-free interest rate | 1.63 | % |  | 2.55 | %
Unrecognized compensation expense is expected to be recognized | At December 31, 2019, the Company had unrecognized compensation expense of $7,598 related to granted but unvested stock awards. That expense is expected to be recognized as follows:
Year Ended December 31, |
2020 | $ | 3,849 |
2021 | 2,349 |
2022 | 885 |
2023 | 515 |
| $ | 7,598 |
Summary of restricted stock activity | The following table summarizes restricted stock activity under the Plans from January 1, 2018 through December 31, 2019:
| Number of Shares |  | Weighted Average
Unvested, January 1, 2018 | 534 |  |  | $ | 11.27 |
Granted | 746 |  |  | $ | 6.61 |
Vested | (177) |  |  | $ | 12.15 |
Forfeiture | (76) |  |  | $ | 11.56 |
Unvested, December 31, 2018 | 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 |

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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=116856206&loc=d3e5070-113901 + Details
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