CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Income Statement [Abstract]
Net sales	$ 112,915	$ 77,043	$ 313,568	$ 233,267
Cost of sales	103,479	70,436	290,655	213,088
Gross profit	9,436	6,607	22,913	20,179
Operating expenses
Research, development and engineering expenses	1,510	1,414	4,143	4,181
Selling, general and administrative expenses	5,375	2,985	15,407	8,964
Total operating expenses	6,885	4,399	19,550	13,145
Operating income	2,551	2,208	3,363	7,034
Interest expense, net	317	12	910	50
Income before income taxes	2,234	2,196	2,453	6,984
Income tax provision	373	782	489	751
Net income	$ 1,861	$ 1,414	$ 1,964	$ 6,233
Earnings per share:
Net income per share — Basic	$ 0.18	$ 0.13	$ 0.19	$ 0.59
Weighted average shares outstanding — Basic	10,552	10,533	10,551	10,523
Net income per share — Diluted	$ 0.16	$ 0.12	$ 0.17	$ 0.55
Weighted average shares outstanding — Diluted	11,556	11,350	11,457	11,350