CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Apr. 02, 2016	Mar. 28, 2015
Income Statement [Abstract]
Net sales	$ 118,448	$ 112,915	$ 361,060	$ 313,568
Cost of sales	108,493	103,479	333,076	290,655
Gross profit	9,955	9,436	27,984	22,913
Operating expenses
Research, development and engineering expenses	1,634	1,510	4,696	4,143
Selling, general and administrative expenses	5,564	5,375	16,348	15,407
Total operating expenses	7,198	6,885	21,044	19,550
Operating income	2,757	2,551	6,940	3,363
Interest expense, net	620	317	1,674	910
Income before income taxes	2,137	2,234	5,266	2,453
Income tax provision	354	373	879	489
Net income	$ 1,783	$ 1,861	$ 4,387	$ 1,964
Earnings per share:
Net income per share — Basic	$ 0.17	$ 0.18	$ 0.41	$ 0.19
Weighted average shares outstanding — Basic	10,711	10,552	10,709	10,551
Net income per share — Diluted	$ 0.16	$ 0.16	$ 0.39	$ 0.17
Weighted average shares outstanding — Diluted	11,068	11,556	11,298	11,457