Note 10 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2024
Effective Income Tax Rate Reconciliation, Percent	25.90%	26.20%	28.40%	26.10%
Deferred Tax Assets, Valuation Allowance	$ 0		$ 0		$ 0
Liability for Uncertainty in Income Taxes, Current	822,000		822,000		$ 785,000
Unrecognized Tax Benefits	$ 822,000		$ 822,000