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Note 14 - Significant Customers (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
  

Year Ended December 31,

 

Customer

 

2022

 

2021

 

2020

 

Distributor A

  24% 26% 24%

Distributor B

  19% 15% 11%

Distributor C

  *  10% * 
  

December 31,

 
  

2022

  

2021

 

Distributor A

  29%  26%

Distributor B

  23%  17%

Value-added reseller A

  *   12%