CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenues	$ 449,480	$ 464,044	$ 446,322
Cost of Goods and Services Sold	414,231	429,443	412,153
Gross profit	35,249	34,601	34,169
Operating expenses
Research, development and engineering expenses	7,391	6,555	6,186
Selling, general and administrative expenses	21,030	21,556	22,334
Goodwill and intangible assets impairment	0	12,448	0
Loss on settlement of arbitration	0	0	4,535
Total operating expenses	28,421	40,559	33,055
Operating income (loss)	6,828	(5,958)	1,114
Interest expense, net	2,509	2,782	2,556
Income (loss) before income taxes	4,319	(8,740)	(1,442)
Income tax benefit	(439)	(758)	(117)
Net income (loss)	$ 4,758	$ (7,982)	$ (1,325)
Earnings per share:
Net income (loss) per share — Basic	$ 0.44	$ (0.74)	$ (0.12)
Weighted average shares outstanding– basic	10,760	10,760	10,760
Net income (loss) per share — Diluted	$ 0.44	$ (0.74)	$ (0.12)
Weighted average shares outstanding — Diluted	10,816	10,760	10,760