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Note 12 - Segment Reporting (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Number of Operating Segments 1   1    
Customer Concentration Risk [Member] | Revenue Benchmark [Member]          
Number of Major Customers 1 1 1    
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member]          
Concentration Risk, Percentage 24.70% 20.20% 22.70% 17.80%  
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Geographic Distribution, Foreign [Member]          
Concentration Risk, Percentage 18.50% 16.90% 17.60% 14.80%  
Customer Concentration Risk [Member] | Accounts Receivable [Member]          
Number of Major Customers     2   1
Customer Concentration Risk [Member] | Accounts Receivable [Member] | One Customer [Member]          
Concentration Risk, Percentage         10.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Two Customers [Member]          
Concentration Risk, Percentage     23.80%    
Customer Concentration Risk [Member] | Long-Lived Assets [Member] | Geographic Distribution, Foreign [Member]          
Concentration Risk, Percentage     18.60%   17.00%