Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Liabilities measured at fair value on a recurring basis
Warrant liability	$ 1,560,000	$ 1,226,000
Liability transfers from Level 1 to Level 2		0
Liability transfers from Level 2 to Level 1	0
Fair Value, Inputs, Level 1
Liabilities measured at fair value on a recurring basis
Warrant liability	0	0
Fair Value, Inputs, Level 2
Liabilities measured at fair value on a recurring basis
Warrant liability	0	0
Fair Value, Inputs, Level 3
Liabilities measured at fair value on a recurring basis
Warrant liability	$ 1,560,000	$ 1,226,000

Fair value of warrant liability.

No definition available.

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- 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.

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- Definition

Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

+ References

+ Details

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