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Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Millions
Apr. 01, 2016
Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value of shareholder notes payable   $ 1.8
Embedded Derivative Financial Instruments    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Expected volatility 109.00%  
Risk-free interest rate 0.80%  
Expected life in years 2 years 6 months  
Kanis Agreement    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Liquidity event discount rate 25.00%  
Fair Value    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value of shareholder notes payable   $ 1.8