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Fair Value of Financial Instruments - Embedded Derivative Liability Valuation Assumptions (Detail) (USD $)
3 Months Ended
Mar. 31, 2015
Fair Value Disclosures [Abstract]  
Series A Preferred Stock Conversion price $ 0.03llti_ConvertiblePreferredStockConversionPrice
Intrinsic value of conversion option per share $ 0llti_IntrinsicValueOfConversionOptionPerShare