Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Deferred tax assets derived from:
Allowance for accounts receivable	$ 3,630	$ 5,557
Inventories	3,510	5,577
Nondeductible accrued expenses	7,859	8,024
Net operating loss carryforwards	705	892
Tax credits	6,410	7,138
Deferred compensation	6,548	7,893
Stock compensation	4,001	2,977
Capital loss carryforwards	7,831	7,633
Timing of amortization deduction from intangible assets	5,676	4,880
Total deferred tax assets	46,170	50,571
Valuation allowance	(13,181)	(13,996)
Total deferred tax assets, net of allowance	32,989	36,575
Deferred tax liabilities derived from:
Timing of depreciation and other deductions from building and equipment	(3,035)	(3,749)
Timing of amortization deduction from goodwill	(5,693)	(582)
Timing of amortization deduction from intangible assets	(11,737)	(14,345)
Total deferred tax liabilities	(20,465)	(18,676)
Net deferred tax assets	$ 12,524	$ 17,899