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Note 2 - Concentration of Credit Risk and Major Customers (Details Textual) - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contract with Customer Benchmark [Member] \| Two Customers [Member]
Concentration Risk Number of Customers	2
Revenue Benchmark [Member] \| Customer One [Member]
Concentration Risk, Percentage	25.70%
Revenue Benchmark [Member] \| Customer Two [Member]
Concentration Risk, Percentage	10.30%
Revenue Benchmark [Member] \| One Customer [Member]
Concentration Risk Number of Customers		1
Concentration Risk, Percentage		26.90%
Accounts Receivable [Member] \| Two Customers [Member]
Concentration Risk Number of Customers	2
Accounts Receivable [Member] \| Customer One [Member]
Concentration Risk, Percentage	22.10%	21.30%
Accounts Receivable [Member] \| Customer Two [Member]
Concentration Risk, Percentage	12.70%	13.80%