Warranty (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Activity in warranty reserve [Abstract]
Reserve balance, beginning of period	$ 5,533,000	$ 5,883,000	$ 5,745,000	$ 6,022,000
Current period expense	561,000	1,044,000	2,528,000	2,825,000
Payments or credits to customers	(706,000)	(1,077,000)	(2,957,000)	(2,756,000)
Foreign currency translation	(39,000)	52,000	33,000	(189,000)
Reserve balance, end of period	5,349,000	5,902,000	5,349,000	5,902,000
Current portion of warranty accrual	(3,737,000)		(3,737,000)
Long-term portion of warranty accrual		$ (1,612,000)		$ (1,612,000)