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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2018
Stockholders' Equity Note [Abstract] |
Schedule of Share-based Compensation, Restricted Stock Units Award Activity | The following table summarizes the Company’s service and performance based share compensation awards:
| Number of Shares |  | Weighted Average Fair Value Per Share
Nonvested at December 31, 2015 | 913,823 |  |  | $ | 4.83 |
Granted | 79,240 |  |  | 4.36 |
Vested | (351,855 | ) |  | 4.46 |
Forfeited | — |  |  | — |
Nonvested at December 31, 2016 | 641,208 |  |  | 4.97 |
Granted | 217,341 |  |  | 10.69 |
Vested | (612,463 | ) |  | 5.09 |
Forfeited | (5,357 | ) |  | 6.27 |
Nonvested at December 31, 2017 | 240,729 |  |  | 9.82 |
Granted | 1,196,575 |  |  | 12.58 |
Vested | (150,280 | ) |  | 10.54 |
Forfeited | (19,495 | ) |  | 14.05 |
Nonvested at December 31, 2018 | 1,267,529 |  |  | $ | 12.40 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | Pursuant to non-employee director compensation arrangements, non-employee directors of the Company were awarded unvested stock with one-year vesting as follows:
| Years Ended December 31,
| 2018 |  | 2017 |  | 2016
Shares awarded to each non-employee director* | 7,404 |  |  | 5,257 |  |  | 11,848 |
Total shares awarded | 44,424 |  |  | 36,799 |  |  | 59,240 |
Average grant-date market price per share | $ | 11.48 |  |  | $ | 9.60 |  |  | $ | 4.22 |
Total compensation cost attributable to shares awarded | $ | 509,988 |  |  | $ | 353,000 |  |  | $ | 250,000 |
Compensation cost recognized related to current and prior year awards | $ | 518,164 |  |  | $ | 283,307 |  |  | $ | 249,995 |
* Additional non-employee director was issued 4,866 shares at $13.10 which were prorated due to date of appointment, with a total compensation cost of $63,745.

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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