Note 2 - Liquidity and Material Agreements (Details Textual) - USD ($)				3 Months Ended		9 Months Ended
	Nov. 22, 2023	Jul. 13, 2023	Nov. 01, 2008	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2024	Dec. 31, 2025	Apr. 01, 2025	Mar. 15, 2018
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation				$ 4,539,940			$ 4,631,666
Working Capital				8,509,684
Revenue from Contract with Customer, Including Assessed Tax				15,000	$ 1,260,756
Net Income (Loss) Attributable to Parent				223,227	514,765
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation				(57,772)	34,789
Net loss				(223,227)	(514,765)
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation				33,954	29,743
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
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%
Interim Agreement [Member]
Concession Fees				0	$ 412,000
Key Bank National Association [Member] | Term Loan [Member]
Long-Term Debt, Current Maturities				$ 0			$ 0
Working Capital Line of Credit [Member] | Key Bank National Association [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 500,000								$ 1,000,000
Acquisition Line of Credit [Member] | Key Bank National Association [Member]
Debt Instrument, Basis Spread on Variable Rate	2.75%