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 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative Liability $ 164 $ 454 $ 164 $ 454 $ 130 $ 20
Fair Value Adjustment of Warrants 15 $ (250) $ 34 $ (369)    
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 $ 164   $ 164   $ 130  
Fair Value, Inputs, Level 3 [Member] | Warrant Liability [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Fair Value Assumptions, Expected Volatility Rate     79.54%      
Fair Value Assumptions, Risk Free Interest Rate     2.68%      
Fair Value Assumptions, Expected Term     3 years 6 months 29 days      
Fair Value Assumptions, Expected Dividend Rate     0.00%