Note 2 - Liquidity and Material Agreements (Details Textual) - USD ($)				3 Months Ended						9 Months Ended
	Jul. 13, 2023	Apr. 28, 2023	Nov. 01, 2008	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Apr. 01, 2025	Dec. 31, 2024
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation				$ 4,790,773						$ 4,790,773			$ 5,298,722
Working Capital				8,812,218						8,812,218
Revenue from Contract with Customer, Including Assessed Tax				0			$ 2,505,488			1,260,756	$ 6,466,973
Net Income (Loss) Attributable to Parent				163,931	$ 266,174	$ 514,765	(580,885)	$ 31,307	$ (187,290)	944,870	(736,868)
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation										(423,345)	(912,541)
Net (loss) income				$ (163,931)	$ (266,174)	$ (514,765)	$ 580,885	$ (31,307)	$ 187,290	(944,870)	736,868
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation										84,604	940,742
Interim Agreement, Initial Term	6 months
Interim Agreement, Renewal Period (Year)	6 years
Amount Of Gross Receipts During Initial Term	$ 1,036,811
Percentage Of Gross Receipts During Initial Term	30.00%
Amount Of Gross Receipts During Both Renewal Periods	$ 518,406
Percentage Amount of Gross Receipts During Both Renewal Periods	30.00%
Covenant Agreement [Member]
Contractual Obligation												$ 276,923
Concession Agreement [Member]
Percentage Payable Greater than Gross Receipts During Period			18.00%
Amount of Gross Receipts During Period			$ 5,000,000								5,000,000
Percentage Payable Greater than Gross Receipts in Year One			25.00%
Temporary Use Authorization Agreement [Member]
Monthly Administrative Fee		$ 5,000
Interim Agreement [Member]
Concession Fees										$ 412,000	$ 1,969,000