CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Income Statement [Abstract]
Net sales	$ 78,250	$ 94,567	$ 156,224	$ 192,075
Cost of sales	71,300	85,071	142,652	173,104
Gross profit	6,950	9,496	13,572	18,971
Operating expenses
Research, development and engineering expenses	1,421	1,225	2,767	2,475
Selling, general and administrative expenses	3,163	2,939	5,979	5,468
Total operating expenses	4,584	4,164	8,746	7,943
Operating income	2,366	5,332	4,826	11,028
Interest expense, net	16	92	38	208
Income before income taxes	2,350	5,240	4,788	10,820
Income tax (benefit) provision	(764)	1,661	(31)	3,497
Net income	$ 3,114	$ 3,579	$ 4,819	$ 7,323
Earnings per share:
Net income per share — Basic (in dollars per share)	$ 0.30	$ 0.34	$ 0.46	$ 0.70
Weighted average shares outstanding — Basic	10,530	10,489	10,519	10,487
Net income per share — Diluted (in dollars per share)	$ 0.28	$ 0.33	$ 0.44	$ 0.67
Weighted average shares outstanding — Diluted	10,932	10,899	10,925	10,864