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Common Stock Purchase Warrants - Summary of Warrant Activity (Details) - Warrants [Member]	9 Months Ended
	Sep. 30, 2019 $ / shares shares
Warrants, Vested, Beginning balance | shares	4,693,145
Warrants, Granted | shares	571,428
Warrants, Exercised | shares	(529,000)
Warrants, Cancelled | shares	(18,000)
Warrants, Vested, Ending balance | shares	4,717,573
Weighted average exercise price, Vested, Beginning balance | $ / shares	$ 5.40
Weighted average exercise price, Granted | $ / shares	1.81
Weighted average exercise price, Exercised | $ / shares	(2.96)
Weighted average exercise price, Cancelled | $ / shares	(3.50)
Weighted average exercise price, Vested, Ending balance | $ / shares	$ 5.23

X

- Definition

Weighted average exercise price, Exercised.

+ References

No definition available.

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- Definition

Weighted average exercise price, Cancelled.

+ References

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- Definition

Weighted average exercise price, Granted.

+ References

No definition available.

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- Definition

Weighted average exercise price, Vested

+ References

No definition available.

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X

- Definition

Number of non-option equity instruments exercised by participants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(2)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Net number of non-option equity instruments granted to participants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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