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Derivative Financial Instruments - Components of Derivative Liabilities (Detail) - USD ($) | Mar. 31, 2016 | Dec. 31, 2015
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Derivative [Line Items] |  |
Derivative liabilities | $ 64,941 | $ 3,402,416
Derivative liabilities | $ 64,941 | $ 3,402,416
Common shares linked to derivative liabilities | 130,208 | 3,304,812
Compound Embedded Derivative [Member] |  |
Derivative [Line Items] |  |
Common shares linked to derivative liabilities |  | 3,174,604
Warrant Derivatives [Member] |  |
Derivative [Line Items] |  |
Derivative liabilities | $ 64,941 | $ 6,225
Derivative liabilities | $ 64,941 | $ 6,225
Common shares linked to derivative liabilities | 130,208 | 130,208
Senior Convertible Notes [Member] | Warrant Derivatives [Member] |  |
Derivative [Line Items] |  |
Derivative liabilities | $ 64,941 | $ 6,225
Derivative liabilities | $ 64,941 | $ 6,225
Common shares linked to derivative liabilities | 130,208 | 130,208
2014 Convertible Promissory Notes [Member] | Compound Embedded Derivative [Member] |  |
Derivative [Line Items] |  |
Derivative liabilities |  | $ 3,396,191
Derivative liabilities |  | $ 3,396,191
Common shares linked to derivative liabilities |  | 3,174,604

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