Income Taxes (Details 2)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Reconciliations of federal statutory income tax rate and Company's effective income tax rate:
Statutory income tax rate	21.00%	21.00%	28.06%	35.00%
State and local taxes	6.40%	4.40%	3.10%
U.S. federal tax reform	0.00%	(0.30%)	3.10%
CARES Act NOL carryback	(1.80%)	0.00%	0.00%
Goodwill impairment	31.40%	0.00%	0.00%
Stock compensation	1.30%	0.50%	0.40%
GILTI/FDII	3.60%	0.70%	0.00%
R & D credit	(1.20%)	(0.40%)	(0.30%)
U.S. tax on foreign income, net	(3.10%)	0.50%	0.00%
Impact of foreign operations	1.60%	(0.60%)	0.70%
Non-deductibles	1.20%	0.60%	0.30%
Interest deduction	(4.00%)	(1.20%)	(1.60%)
Deductible dividend	(0.60%)	(0.20%)	(1.30%)
Valuation allowance	2.60%	2.90%	(0.30%)
Other, net	0.70%	(0.90%)	(0.60%)
Effective income tax rate	56.50%	26.00%	30.80%