Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement (Details)

v3.7.0.1
Fair Value Measurement (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Conversion into common shares $ (1,000) $ 0
Change in fair value of convertible notes warrants (15) $ 0
NSC Contingently Issuable Warrants [Member]    
Fair value, Beginning Balance 302  
Change in fair value 448  
Conversion into common shares (750)  
Change in fair value of convertible notes warrants 0  
Fair value, Ending Balance 0  
Westpark Contingently Issuable Warrants [Member]    
Fair value, Beginning Balance 12  
Change in fair value 3  
Conversion into common shares 0  
Change in fair value of convertible notes warrants (15)  
Fair value, Ending Balance 0  
Warrant [Member]    
Fair value, Beginning Balance 314  
Change in fair value 451  
Conversion into common shares (750)  
Change in fair value of convertible notes warrants (15)  
Fair value, Ending Balance $ 0