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Note 11 - Segment Reporting (Details Textual) - Customer Concentration Risk [Member] - One Customer [Member]
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2022
Revenue Benchmark [Member]    
Concentration Risk, Percentage 25.10% 20.50%
Accounts Receivable [Member]    
Concentration Risk, Percentage   10.70%