CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jul. 01, 2017
Income Statement [Abstract]
Net sales	$ 464,044	$ 446,322	$ 467,797
Cost of sales	429,443	412,153	429,497
Gross profit	34,601	34,169	38,300
Operating expenses
Research, development and engineering expenses	6,555	6,186	6,393
Selling, general and administrative expenses	21,556	22,334	22,363
Goodwill and intangible assets impairment	12,448	0	0
Loss on settlement of arbitration	0	4,535	0
Total operating expenses	40,559	33,055	28,756
Operating income (loss)	(5,958)	1,114	9,544
Interest expense, net	2,782	2,556	2,288
Income (loss) before income taxes	(8,740)	(1,442)	7,256
Income tax provision (benefit)	(758)	(117)	1,639
Net income (loss)	$ (7,982)	$ (1,325)	$ 5,617
Earnings per share:
Net income (loss) per share — Basic	$ (0.74)	$ (0.12)	$ 0.52
Weighted average shares outstanding– basic	10,760	10,760	10,756
Net income (loss) per share — Diluted	$ (0.74)	$ (0.12)	$ 0.51
Weighted average shares outstanding — Diluted	10,760	10,760	10,917