Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Fair Value Assets and Liabilities (Details)

v3.10.0.1
Fair Value Measurements - Fair Value Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Warrant liability $ 585 $ 1,648
Contingent success fee liability 34  
Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Warrant liability 585 1,648
Contingent consideration liability   42
Contingent success fee liability 34 39
Level 1 | Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Warrant liability 0 0
Contingent consideration liability   0
Contingent success fee liability 0 0
Level 2 | Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Warrant liability 0 0
Contingent consideration liability   0
Contingent success fee liability 0 0
Level 3 | Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Warrant liability 585 1,648
Contingent consideration liability   42
Contingent success fee liability $ 34 $ 39