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Warrants - Summary of Assumptions Used to Estimate Fair Value of Warrants Granted (Details)	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Dividend Yield [Member]
Class of Warrant or Right [Line Items]
Warrants, measurement input	0.00	0	0
Expected Volatility [Member]
Class of Warrant or Right [Line Items]
Warrants, measurement input	217		200
Expected Volatility [Member] | Minimum [Member]
Class of Warrant or Right [Line Items]
Warrants, measurement input		231
Expected Volatility [Member] | Maximum [Member]
Class of Warrant or Right [Line Items]
Warrants, measurement input		632
Risk Free Interest Rate [Member]
Class of Warrant or Right [Line Items]
Warrants, measurement input	2.75
Risk Free Interest Rate [Member] | Minimum [Member]
Class of Warrant or Right [Line Items]
Warrants, measurement input		2.55	1.81
Risk Free Interest Rate [Member] | Maximum [Member]
Class of Warrant or Right [Line Items]
Warrants, measurement input		2.75	1.84
Expected Life of Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, term	5 years		5 years
Expected Life of Warrants [Member] | Minimum [Member]
Class of Warrant or Right [Line Items]
Warrants, term		5 years
Expected Life of Warrants [Member] | Maximum [Member]
Class of Warrant or Right [Line Items]
Warrants, term		8 years

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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X

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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