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Note 23 - Concentration of Customers - Concentrations (Details) - Customer Concentration Risk [Member]
6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revenue Benchmark [Member] | Customer A [Member]    
Concentration risk 42.80% 37.10%
Revenue Benchmark [Member] | Customer B [Member]    
Concentration risk 15.60% 7.50%
Accounts Receivable [Member] | Customer A [Member]    
Concentration risk 40.10% 48.50%
Accounts Receivable [Member] | Customer B [Member]    
Concentration risk 16.70% 7.20%