Note 12 - Income Taxes - Activity in Unrecognized Tax Benefits (Details) - USD ($)	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Beginning Balance	$ 891,000	$ 785,000
Decrease related to prior year tax positions	(36,000)	0
Increases related to prior year tax positions	0	106,000
Ending Balance	$ 855,000	$ 891,000