Income Taxes (Details 2)	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Reconciliations of federal statutory income tax rate and Company's effective income tax rate:
Statutory income tax rate	21.00%	21.00%	21.00%
State and local taxes	2.90%	4.00%	3.50%
Stock compensation	(1.10%)	(1.20%)	(1.00%)
GILTI/FDII	0.00%	(0.40%)	(0.20%)
R & D credit	(0.50%)	(0.40%)	(0.40%)
U.S. tax on foreign income, net	(0.60%)	(0.10%)	0.00%
Impact of foreign operations	0.30%	0.30%	0.20%
Non-deductibles/Deductible dividend	0.70%	0.90%	0.60%
Interest deduction	(0.20%)	(0.40%)	(0.40%)
Valuation allowance	0.10%	(0.70%)	(0.60%)
Other, net	(1.00%)	(0.40%)	0.20%
Effective income tax rate	21.60%	22.60%	22.90%