Note 14 - Income Taxes - Reconciliation of Income Tax Rate (Details)	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Provision for income taxes at the anticipated annual tax rate	30.50%	22.40%	25.90%	23.40%
Uncertain tax positions	1.20%	0.50%	0.30%	(0.80%)
Other	0.70%	0.00%	0.20%	0.00%
Share-based compensation	(0.20%)	0.00%	(0.60%)	0.20%
Effective tax rate	32.60%	22.90%	27.00%	22.40%