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Note 10 - Significant Customers / Concentration / Disaggregated Revenue (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
   

For the Three Months

 
   

Ended March 31,

 
   

2023

   

2022

 

Customer A

    *

%

    12

%

Customer B

    *

%

    10

%

   

March 31,

2023

   

December 31,

2022

 

Customer C

    22

%

    17

%

Customer D

    10

%

    *

%

Customer B

    *

%

    20

%

Customer A

    *

%

    10

%