Quarterly report pursuant to Section 13 or 15(d)

Entity Level Information - Composition of Revenues (Details)

v3.20.1
Entity Level Information - Composition of Revenues (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Entity Wide Information Revenue From External Customer [Line Items]    
Total revenues $ 12,706 $ 26,484
Product Sales    
Entity Wide Information Revenue From External Customer [Line Items]    
Total revenues 12,695 26,332
Services    
Entity Wide Information Revenue From External Customer [Line Items]    
Total revenues $ 11 $ 152