Note 7 - Income Taxes - Provision for Income Taxes (Details) - USD ($)	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Current expense	$ 0	$ 0
Deferred expense/(Benefit)	464,000	360,000
Inc/ (Dec) in valuation expense	(464,000)	(360,000)
Total provision for income tax	$ 0	$ 0