Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 28, 2021	Mar. 29, 2020
Income Statement [Abstract]
Net sales	$ 178,866	$ 170,994	$ 483,147	$ 520,454
Cost of sales	153,271	155,611	417,057	471,963
Gross profit	25,595	15,383	66,090	48,491
Selling, general and administrative expenses	14,581	11,720	38,570	35,208
(Benefit) provision for bad debts	(184)	580	(1,330)	331
Other operating expense (income), net	2,582	(62)	4,236	900
Operating income	8,616	3,145	24,614	12,052
Interest income	(159)	(173)	(471)	(595)
Interest expense	885	1,231	2,589	3,589
Equity in earnings of unconsolidated affiliates	(528)	(3,526)	(751)	(1,904)
Impairment of investment in unconsolidated affiliate		45,194		45,194
Income (loss) before income taxes	8,418	(39,581)	23,247	(34,232)
Provision for income taxes	3,660	1,530	7,593	2,758
Net income (loss)	$ 4,758	$ (41,111)	$ 15,654	$ (36,990)
Net income (loss) per common share:
Basic	$ 0.26	$ (2.23)	$ 0.85	$ (2.00)
Diluted	$ 0.25	$ (2.23)	$ 0.83	$ (2.00)