CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jun. 29, 2019
Income Statement [Abstract]
Net sales	$ 518,698	$ 449,480	$ 464,044
Cost of Goods and Services Sold	476,659	414,231	429,443
Gross profit	42,039	35,249	34,601
Operating expenses
Research, development and engineering expenses	9,790	7,391	6,555
Selling, general and administrative expenses	22,723	21,030	21,556
Goodwill and intangible assets impairment	0	0	12,448
Total operating expenses	32,513	28,421	40,559
Operating income (loss)	9,526	6,828	(5,958)
Interest expense, net	3,613	2,509	2,782
Income (loss) before income taxes	5,913	4,319	(8,740)
Income tax provision (benefit)	1,572	(439)	(758)
Net income (loss)	$ 4,341	$ 4,758	$ (7,982)
Earnings per share:
Net income (loss) per share — Basic	$ 0.40	$ 0.44	$ (0.74)
Weighted average shares outstanding– basic	10,760	10,760	10,760
Net income (loss) per share — Diluted	$ 0.39	$ 0.44	$ (0.74)
Weighted average shares outstanding — Diluted	11,046	10,816	10,760