Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Fair Value of Notes Payable (Details)

v3.19.3
Fair Value Measurements - Summary of Fair Value of Notes Payable (Details) - Fair Value Measurements, Recurring - Significant Unobservable Inputs (Level 3)
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
Note Payable | VenturEast  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Fair value at December 31, 2018 $ 20
Change in fair value (12)
Fair value at September 30, 2019 8
Warrant Liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Fair value at December 31, 2018 248
Change in fair value (233)
Fair value at September 30, 2019 15
Other Derivatives  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Fair value at December 31, 2018 86
Change in fair value (86)
Fair value at September 30, 2019 $ 0