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Note 2 - Revenue - Concentration of Revenue (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer A [Member]        
Concentration 63.00% 70.00% 61.00% 70.00%