Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements Rollforward (Details)

v3.10.0.1
Fair Value Measurements Rollforward (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Addition of warrant liability     $ 2,347  
Change in fair value $ 401 $ (15) 292 $ 52
Balance at September 30, 2018 3,458   3,458  
Fair value, measurements, recurring | Significant Unobservable Inputs (Level 3)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Change in fair value     292  
Balance at September 30, 2018 $ 3,458   $ 3,458