Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Shares Underlying Options Outstanding [Member]
Excluded anti-dilutive stock options and warrants	7,434,561	6,770,777
Shares Underlying Warrants Outstanding [Member]
Excluded anti-dilutive stock options and warrants	6,642,344	7,099,010
Unvested Restricted Stock [Member]
Excluded anti-dilutive stock options and warrants	449,043	799,387

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration