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Note 13 - Revenue - Product Sales Disaggregated by Major Product Category (Details) - USD ($)	3 Months Ended			9 Months Ended			12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024
Revenue from Contract with Customer, Excluding Assessed Tax	$ 5,506,122	$ 6,011,573		$ 20,018,175	$ 18,742,040	$ 17,471,669	$ 26,493,169
Revenue Benchmark [Member] | Product Concentration Risk [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 5,506,122		$ 6,011,573	$ 20,018,175	$ 18,742,040
Concentration Risk, Percentage	100.00%		100.00%	100.00%	100.00%
Product [Member] | Revenue Benchmark [Member] | Product Concentration Risk [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 5,444,619		$ 5,951,344	$ 19,871,621	$ 18,602,053
Concentration Risk, Percentage	99.00%		99.00%	99.00%	99.00%
Product and Service, Other [Member] | Revenue Benchmark [Member] | Product Concentration Risk [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 61,503		$ 60,229	$ 146,554	$ 139,987
Concentration Risk, Percentage	1.00%		1.00%	1.00%	1.00%

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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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