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Note 13 - Concentrations (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

Accounts Receivable

 

2022

   

2021

 

Customer 1

    29 %     0

%

Customer 2

    27 %     0

%

Customer 3

    15 %     6 %

Revenues

 

2022

   

2021

 

Customer 1

    33 %     22 %

Customer 2

    15 %     16 %