XML 30 R19.htm IDEA: XBRL DOCUMENT v3.19.2
Note 2 - Revenue Information (Tables)
 6 Months Ended
Jun. 30, 2019
Notes Tables  
Disaggregation of Revenue [Table Text Block]
   
Three months ended June 30,
    
Six months ended June 30,
  
   
2019
    
2018
    
2019
    
2018
  
Audio Conferencing
   $
2,889
     $
3,593
     $
5,600
     $
7,252
  
Microphones
    
2,230
      
2,255
      
4,336
      
4,565
  
Video products
    
1,301
      
1,123
      
2,789
      
2,443
  
    $
6,420
     $
6,971
     $
12,725
     $
14,260
  
   
Three months ended June 30,
    
Six months ended June 30,
  
   
2019
    
2018
    
2019
    
2018
  
North and South America
   $
3,493
     $
4,111
     $
7,253
     $
8,456
  
Asia (including Middle East) and Australia
    
1,969
      
1,861
      
3,833
      
3,899
  
Europe and Africa
    
958
      
999
      
1,639
      
1,905
  
    $
6,420
     $
6,971
     $
12,725
     $
14,260