Note 5 - Finite-life Intangible Assets - Schedule of Finite-Life Intangible Assets (Details) - USD ($)	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Finite-lived Intangible Assets, Net	$ 657,000	$ 605,000
Additions	59,000	104,000
Amortization expense	(133,000)	(52,000)
Impairment	(212,000)	0
Finite-lived Intangible Assets, Net	$ 371,000	$ 657,000