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Stockholders' Equity and Stock-based Compensation - Schedule of Warrants Outstanding and Warrants Exercisable (Details)	9 Months Ended
	Sep. 30, 2018 $ / shares shares
Warrant [Member]
Warrants Outstanding	4,349,969
Exercise Price | $ / shares	$ 1.90
Warrants Exercisable	4,349,969
Lender Warrants [Member]
Issue Date	May 11, 2015
Warrants Outstanding	125,000
Exercise Price | $ / shares	$ 1.79
Warrants Exercisable	125,000
Expiration Date	May 11, 2025
Settlement Warrants [Member]
Issue Date	Aug. 16, 2016
Warrants Outstanding	40,000
Exercise Price | $ / shares	$ 3.75
Warrants Exercisable	40,000
Expiration Date	Aug. 16, 2021
Placement Agent Warrants [Member]
Issue Date	Dec. 27, 2016
Warrants Outstanding	210,313
Exercise Price | $ / shares	$ 1.79
Warrants Exercisable	210,313
Expiration Date	Dec. 27, 2019
PIPE Investor Warrants [Member]
Issue Date	Dec. 27, 2016
Warrants Outstanding	3,359,270
Exercise Price | $ / shares	$ 1.79
Warrants Exercisable	3,359,270
Expiration Date	Dec. 27, 2019
Lender Warrants One [Member]
Issue Date	Jul. 19, 2017
Warrants Outstanding	615,386
Exercise Price | $ / shares	$ 2.08
Warrants Exercisable	615,386
Expiration Date	Jul. 19, 2024

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+ References

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- Definition

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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