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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The Company incurred losses for the years ended December 31, 2017, 2016 and 2015. For all periods presented, all equity instruments are excluded from the calculation of diluted earnings (loss) per share as the effect of such shares is anti-dilutive. The weighted average number of equity instruments excluded consist of:
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Stock Options | 1,386,176 |  |  | 1,789,751 |  |  | 2,047,083 |
Stock-Settled Stock Appreciation Rights (“SSAR”) | 333,252 |  |  | 360,031 |  |  | 368,331 |
Restricted Stock Units | 1,396,730 |  |  | 705,850 |  |  | 700,265 |
Warrants | 2,690,950 |  |  | 877,303 |  |  | 82,192 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation | The following table presents changes in the liability-classified warrant measured at fair value using Level 3 inputs:
| Fair Value Measurements of Level 3 liability classified warrant
Warrant liability at December 31, 2016 | $ | 6,727,409 |
Increase in fair value of warrant liability | 4,738,753 |
Warrant liability at December 31, 2017 | $ | 11,466,162 |

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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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