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Fair Value Measurement (Details) - $ / shares
1 Months Ended 9 Months Ended 12 Months Ended
Jan. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]        
-current stock price $ 2.95 $ 17.60   $ 10.34
-exercise price $ 22.40      
- risk-free interest rate 1.41% 1.43%   1.42%
- estimated volatility 60.00% 60.00%   60.00%
Maximum [Member]        
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]        
-current stock price $ 6.20      
Minimum [Member]        
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]        
-current stock price $ 0.00      
Level 3 [Member]        
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]        
-exercise price     $ 1.44  
-time to maturity     5 years  
- estimated volatility     149.00%  
Level 3 [Member] | Maximum [Member]        
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]        
-current stock price     $ 1.34  
- risk-free interest rate     1.79%  
Level 3 [Member] | Minimum [Member]        
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]        
-current stock price     $ 1.20  
- risk-free interest rate     1.63%