Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Schedule of Net Revenue Disaggregate by Product Category (Details)

v3.20.4
Revenue Recognition - Schedule of Net Revenue Disaggregate by Product Category (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disaggregation Of Revenue [Line Items]    
Revenue $ 63,992 $ 116,251
Smartphones    
Disaggregation Of Revenue [Line Items]    
Revenue 25,880 57,981
Feature Phones    
Disaggregation Of Revenue [Line Items]    
Revenue 35,332 52,714
Accessories/Other    
Disaggregation Of Revenue [Line Items]    
Revenue $ 2,780 $ 5,556