Note 6 - Intangible Assets - Components of Intangible Assets (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2024	Dec. 31, 2023
Net Carrying Amount		$ 245,594
Patents and Trademarks [Member]
Gross Carrying Costs		535,096	$ 535,096
Accumulated Amortization		(289,502)	$ (282,639)
Net Carrying Amount		$ 245,594
Impairment, finite	$ 252,457

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

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