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Carrying Amounts and Fair Values of Company's Financial Instruments (Detail) (USD $)	Mar. 31, 2014	Jan. 31, 2014
Carrying Amounts And Fair Value Of Financial Instruments [Line Items]
Derivative liability, Noncurrent	$ 2,354,624	$ 0
Fair Value
Carrying Amounts And Fair Value Of Financial Instruments [Line Items]
Derivative liability, Noncurrent	2,354,624
Warrant liability \| Fair Value
Carrying Amounts And Fair Value Of Financial Instruments [Line Items]
Derivative liability, Noncurrent	$ 2,354,624

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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