Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Deferred tax assets derived from:
Allowance for accounts receivable	$ 5,811	$ 3,630
Inventories	3,326	3,510
Nondeductible accrued expenses	7,561	7,859
Net operating loss carryforwards	596	705
Tax credits	8,430	6,410
Deferred compensation	7,173	6,548
Stock compensation	4,718	4,001
Capital loss carryforwards	7,348	7,831
Timing of amortization deduction from intangible assets	6,170	5,676
Total deferred tax assets	51,133	46,170
Valuation allowance	(14,397)	(13,181)
Total deferred tax assets, net of allowance	36,736	32,989
Deferred tax liabilities derived from:
Timing of depreciation and other deductions from building and equipment	(1,533)	(3,035)
Timing of amortization deduction from goodwill	(10,886)	(5,693)
Timing of amortization deduction from intangible assets	(10,369)	(11,737)
Total deferred tax liabilities	(22,788)	(20,465)
Net deferred tax assets	$ 13,948	$ 12,524