CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 26, 2015	Dec. 27, 2014
Income Statement [Abstract]
Net sales	$ 116,403	$ 114,311	$ 242,612	$ 200,653
Cost of sales	107,293	105,072	224,583	187,176
Gross profit	9,110	9,239	18,029	13,477
Operating expenses
Research, development and engineering expenses	1,506	1,297	3,062	2,633
Selling, general and administrative expenses	5,201	5,425	10,784	10,032
Total operating expenses	6,707	6,722	13,846	12,665
Operating income	2,403	2,517	4,183	812
Interest expense, net	521	404	1,054	593
Income before income taxes	1,882	2,113	3,129	219
Income tax provision	95	487	525	116
Net income	$ 1,787	$ 1,626	$ 2,604	$ 103
Earnings per share:
Net income per share — Basic	$ 0.17	$ 0.15	$ 0.24	$ 0.01
Weighted average shares outstanding — Basic	10,710	10,552	10,708	10,550
Net income per share — Diluted	$ 0.16	$ 0.14	$ 0.23	$ 0.01
Weighted average shares outstanding — Diluted	11,418	11,471	11,279	11,442