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Warrants - Summary of Warrants Outstanding (Detail)
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6 Months Ended | ||||
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Jun. 30, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Jun. 30, 2014
Range 1 [Member]
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Jun. 30, 2014
Range 2 [Member]
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| Class of Warrant or Right [Line Items] | |||||
| Exercise Price | 1.50 | 2.00 | |||
| Warrants Outstanding | 2,532,094 | 2,747,094 | 3,235,982 | 361,169 | 2,170,925 |
| Expiration Dates | Jul. 31, 2017 | Mar. 23, 2015 | |||
| X | ||||||||||
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- Definition
Warrants expiration dates. No definition available.
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| X | ||||||||||
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- Definition
Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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