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Note 22 - Concentrations of Customers (Tables)
3 Months Ended
Sep. 30, 2021
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
  

For the Three Months Ended Sep 30,

 
  

2021

  

2020

 

Revenue

        

-  Customer A

  40.3

%

  29.0

%

-  Customer B

  13.0

%

  11.8

%

         

Trade Account Receivables

        

-  Customer A

  38.4

%

  33.1

%

-  Customer B

  13.6

%

  5.3

%