Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement (Details 1)

v3.8.0.1
Fair Value Measurement (Details 1) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Liabilities:        
Warrant liabilities $ 149 $ 130 $ 672 $ 20
Fair Value, Inputs, Level 1 [Member]        
Liabilities:        
Warrant liabilities 0 0    
Total liabilities 0 0    
Fair Value, Inputs, Level 2 [Member]        
Liabilities:        
Warrant liabilities 0 0    
Total liabilities 0 0    
Fair Value, Inputs, Level 3 [Member]        
Liabilities:        
Warrant liabilities 149 130    
Total liabilities $ 149 $ 130