Note I - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Effective Income Tax Rate Reconciliation, Percent	23.60%	19.90%	21.00%	20.10%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%		21.00%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 0		$ 0