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Note 10 - Significant Customers
12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Concentration Risk Disclosure [Text Block]
10.
Significant Customers
 
Sales to significant customers that represented more than
10
percent of total revenues are as follows:
 
   
Year ended December 31,
 
   
2018
   
2017
 
Customer A
   
     
16.1
%
Total
   
 
   
16.1
%
 
 
The following table summarizes the percentage of total gross accounts receivable from significant customers:
 
   
As of December 31,
 
   
2018
   
2017
 
Customer A
   
*
     
20.3
%
Customer B    
14.5
%    
11.0
%
Customer C    
11.8
%    
 
 
Total
   
26.3
%    
31.3
%
 
*  Sales to Customer A (Starin Marketing) in
2018
did
not
exceed
10%
of the revenue. Customer A ceased to be a ClearOne distributor in
2018.