Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Potentially Dilute Earnings Per Share in Future Were Excluded in the Computation of Diluted Net (Loss) Income Per Share as They Were Anti-dilutive

The following securities could potentially dilute earnings per share in the future, but were excluded from the computation of diluted net loss per share, as their effect would have been antidilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2018	2017	2018	2017
Preferred stock	14,635,078	13,337,174	14,317,760	5,324,860
Warrants	760,000	760,000	760,000	760,000
Stock appreciation rights	1,017,500	682,500	901,108	556,044
Restricted stock units	1,037,209	629,174	831,486	536,044