Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement (Details Textual)

v3.10.0.1
Fair Value Measurement (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative Liability $ 186 $ 420 $ 186 $ 420 $ 130 $ 20
Fair Value Adjustment of Warrants 22 $ (35) $ 56 $ (404)    
Common Stock [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Warrants To Purchase Common Stock     210,000      
Fair Value, Inputs, Level 3 [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative Liability $ 186   $ 186   $ 130  
Fair Value, Inputs, Level 3 [Member] | Warrant Liability [Member] | Measurement Input, Expected Term [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Fair Values Assumptions Expected Term 1     3 years 3 months 29 days      
Fair Value, Inputs, Level 3 [Member] | Warrant Liability [Member] | Measurement Input, Price Volatility [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Fair Value Assumptions Expected Rates     80.17%      
Fair Value, Inputs, Level 3 [Member] | Warrant Liability [Member] | Measurement Input, Risk Free Interest Rate [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Fair Value Assumptions Expected Rates     2.88%      
Fair Value, Inputs, Level 3 [Member] | Warrant Liability [Member] | Measurement Input, Expected Dividend Rate [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Fair Value Assumptions Expected Rates     0.00%