Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net Sales	$ 138,676	$ 178,174	$ 422,817	$ 571,790
Cost of Sales	98,843	117,680	285,079	375,585
Gross Profit	39,833	60,494	137,738	196,205
Selling and Administrative Expenses	44,930	45,606	132,584	146,239
Restructuring Expense	2,617	818	8,473	6,564
Operating Income (Loss)	(7,714)	14,070	(3,319)	43,402
Other Income (Expense):
Interest income	59	386	248	1,482
Interest expense	(177)	(21)	(263)	(65)
Non-operating income (expense), net	311	(2,078)	2,434	(1,360)
Other income (expense), net	193	(1,713)	2,419	57
Income (Loss) Before Taxes on Income	(7,521)	12,357	(900)	43,459
Provision (Benefit) for Income Taxes	(2,992)	2,906	(919)	11,585
Net Income	$ (4,529)	$ 9,451	$ 19	$ 31,874
Earnings (Loss) Per Share of Common Stock:
Basic Earnings (Loss) Per Share (in dollars per share)	$ (0.12)	$ 0.26	$ 0.00	$ 0.86
Diluted Earnings (Loss) Per Share (in dollars per share)		$ 0.25	$ 0.00	$ 0.86
Class A and B Common Stock:
Average Number of Shares Outstanding - Basic (in shares)	36,860	36,813	36,932	36,890
Average Number of Shares Outstanding - Diluted (in shares)	36,860	37,089	37,529	37,234