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Stockholders' Equity - Warrants (Details) - $ / shares	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Class of Warrant or Right
Warrant expiration date	2023-10
Common Stock
Class of Warrant or Right
Warrants outstanding (in shares)	13,013	13,013
Outstanding warrants exercise price, weighted-average (in USD per share)	$ 5.76	$ 5.76

X

- Definition

Outstanding Warrants Exercise Price, Weighted-Average

+ References

No definition available.

+ Details

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X

- Definition

Warrant Expiration Date1

+ References

No definition available.

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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

Number 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))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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