XML 43 R18.htm IDEA: XBRL DOCUMENT v3.19.3
Note 2 - Revenue Information (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Disaggregation of Revenue [Table Text Block]
   
Three months ended September 30,
   
Nine months ended September 30,
 
   
2019
   
2018
   
2019
   
2018
 
Audio conferencing
  $
2,920
    $
3,433
    $
8,520
    $
10,686
 
Microphones
   
2,189
     
2,124
     
6,525
     
6,689
 
Video products
   
883
     
1,126
     
3,672
     
3,568
 
    $
5,992
    $
6,683
    $
18,717
    $
20,943
 
   
Three months ended September 30,
   
Nine months ended September 30,
 
   
2019
   
2018
   
2019
   
2018
 
North and South America
  $
3,235
    $
4,082
    $
10,488
    $
12,538
 
Asia (including Middle East) and Australia
   
1,931
     
1,693
     
5,764
     
5,592
 
Europe and Africa
   
826
     
908
     
2,465
     
2,813
 
    $
5,992
    $
6,683
    $
18,717
    $
20,943