Annual report pursuant to Section 13 and 15(d)

Fair Value Measurement (Details)

v3.8.0.1
Fair Value Measurement (Details) - USD ($)
$ in Thousands
11 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2017
Dec. 31, 2016
Conversion into common shares $ 0 $ (1,000) $ 0
Change in fair value of convertible notes warrants 0 (15) 0
Warrant [Member]      
Fair value, Beginning Balance   314 114
Change in fair value   451 188
Issuable derivative warrant liabilities     12
Conversion into common shares   (750)  
Change in fair value of convertible notes warrants   (15)  
Fair value, Ending Balance 114 0 314
Warrant [Member] | NSC Contingently Issuable Warrants [Member]      
Fair value, Beginning Balance   302 114
Change in fair value   448 188
Issuable derivative warrant liabilities     0
Conversion into common shares   (750)  
Change in fair value of convertible notes warrants   0  
Fair value, Ending Balance 114 0 302
Warrant [Member] | Westpark Contingently Issuable Warrants [Member]      
Fair value, Beginning Balance   12 0
Change in fair value   3 0
Issuable derivative warrant liabilities     12
Conversion into common shares   0  
Change in fair value of convertible notes warrants   (15)  
Fair value, Ending Balance $ 0 $ 0 $ 12