XML 40 R30.htm IDEA: XBRL DOCUMENT v3.22.1
Revenue Information - Revenue into Primary Product Groups and Major Regions (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Revenue [Line Items]    
Revenue $ 7,545 $ 7,038
North and South America [Member]    
Revenue [Line Items]    
Revenue 3,776 3,524
Asia Pacific (includes Middle East, India and Australia)    
Revenue [Line Items]    
Revenue 2,074 2,226
Europe and Africa [Member]    
Revenue [Line Items]    
Revenue 1,695 1,288
Audio conferencing [Member]    
Revenue [Line Items]    
Revenue 3,176 2,835
Microphones [Member]    
Revenue [Line Items]    
Revenue 2,928 2,350
Video products [Member]    
Revenue [Line Items]    
Revenue $ 1,441 $ 1,853