XML 15 R4.htm IDEA: XBRL DOCUMENT v3.20.2
Condensed Consolidated Statements of Operations (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Stock-based compensation $ (2,243) $ (1,665)    
Inventory step-up and backlog amortization     $ 0 $ 12
Cost of revenue        
Stock-based compensation 127 83 228 178
Inventory step-up and backlog amortization 0 0 0 12
Cost of revenue | Acquired intangible assets        
Amortization of acquired intangible assets 298 298 596 596
Research and development        
Stock-based compensation 806 703 1,454 1,364
Selling, general and administrative        
Amortization of acquired intangible assets 76 76 152 160
Stock-based compensation $ 1,310 $ 879 $ 2,383 $ 1,812