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Note 1 - Summary of Significant Accounting Policies - Major Customers (Details) - Customer Concentration Risk [Member]	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Revenue Benchmark [Member]
Percent of revenue	100.00%	100.00%
Revenue Benchmark [Member] \| Major Customers [Member]
Percent of revenue	41.80%	33.00%
Revenue Benchmark [Member] \| Other Customer [Member]
Percent of revenue	58.20%	67.00%
Accounts Receivable [Member]
Percent of revenue	100.00%	100.00%
Accounts Receivable [Member] \| Major Customers [Member]
Percent of revenue	52.70%	27.70%
Accounts Receivable [Member] \| Other Customer [Member]
Percent of revenue	47.30%	72.30%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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