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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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

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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Namespace Prefix:	us-gaap_
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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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- Details

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Stockholders' Equity - Warrants Outstanding by Expiration Date (Details) - $ / shares	Dec. 31, 2015	Jul. 23, 2015	Feb. 28, 2015	Dec. 31, 2014	Oct. 17, 2014
Class of Warrant or Right [Line Items]
Number of securities called by warrants (shares)	8,837,351				480,392
February 2017
Class of Warrant or Right [Line Items]
Number of securities called by warrants (shares)	2,469,136
Exercise price (USD per share)	$ 5.25
May 2018
Class of Warrant or Right [Line Items]
Number of securities called by warrants (shares)	3,000,000
Exercise price (USD per share)	$ 3.4
February 2022
Class of Warrant or Right [Line Items]
Number of securities called by warrants (shares)	3,021,977		3,021,977
Exercise price (USD per share)	$ 1.82		$ 1.82
October 2024
Class of Warrant or Right [Line Items]
Number of securities called by warrants (shares)	193,798			193,798
Exercise price (USD per share)	$ 1.29
July 2025
Class of Warrant or Right [Line Items]
Number of securities called by warrants (shares)	152,440	152,440
Exercise price (USD per share)	$ 1.64	$ 1.64