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Note 12 - Revenue From Product Sales (Details Textual)	3 Months Ended		9 Months Ended		12 Months Ended
Note 12 - Revenue From Product Sales (Details Textual)	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Concentration Risk, Number of Customers			2
Revenue Benchmark [Member] \| Customer Concentration Risk [Member]
Concentration Risk, Number of Customers	2	2	2	2
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Largest Customer [Member]
Concentration Risk, Percentage	75.00%	87.00%	80.00%	93.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Largest Customer [Member]
Concentration Risk, Percentage			70.00%		80.00%

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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