Enterprise Wide Disclosures (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Jan. 01, 2011	Oct. 02, 2010	Jun. 30, 2012	Jul. 02, 2011	Jul. 03, 2010
Segment Reporting Information [Line Items]
Entity wide revenue by major customer percent less than ten									10.00%
Net sales	$ 96,733	$ 95,527	$ 84,454	$ 69,761	$ 66,044	$ 63,424	$ 61,038	$ 63,340	$ 346,475	$ 253,846	$ 199,620
Canada [Member]
Segment Reporting Information [Line Items]
Foreign net sales									70.90%	50.70%	48.80%
Australia [Member]
Segment Reporting Information [Line Items]
Foreign net sales									12.50%	24.40%	16.90%
Switzerland [Member]
Segment Reporting Information [Line Items]
Foreign net sales									5.40%	6.90%
England [Member]
Segment Reporting Information [Line Items]
Foreign net sales									3.90%	6.10%
New Zealand [Member]
Segment Reporting Information [Line Items]
Foreign net sales									1.50%	5.10%
Europe And Asia [Member]
Segment Reporting Information [Line Items]
Foreign net sales									5.80%	6.80%	20.40%
China [Member]
Segment Reporting Information [Line Items]
Foreign net sales											13.90%
Key Tronic EMS [Member]
Segment Reporting Information [Line Items]
Net sales									343,700	249,900	195,100
Keyboard [Member]
Segment Reporting Information [Line Items]
Net sales									$ 2,800	$ 3,900	$ 4,500