CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Income Statement [Abstract]
Net sales	$ 484,965	$ 433,997	$ 305,394
Cost of sales	446,140	400,692	278,540
Gross profit	38,825	33,305	26,854
Operating expenses
Research, development and engineering expenses	6,397	5,784	5,586
Selling, general and administrative expenses	22,012	20,868	11,964
Total operating expenses	28,409	26,652	17,550
Operating income	10,416	6,653	9,304
Interest expense, net	2,265	1,353	81
Income before income taxes	8,151	5,300	9,223
Income tax provision	1,618	996	1,610
Net income	$ 6,533	$ 4,304	$ 7,613
Earnings per share:
Net income per share — Basic	$ 0.61	$ 0.41	$ 0.72
Weighted average shares outstanding– basic	10,710	10,572	10,528
Net income per share — Diluted	$ 0.58	$ 0.38	$ 0.67
Weighted average shares outstanding — Diluted	11,278	11,286	11,358