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Fair Value of Financial Instruments (Summary of Fair Value Measurements for Liabilities Measured on Recurring Basis) (Details) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Warrant liability $ 380,000