Warranty (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014	Mar. 29, 2013
Activity in warranty reserve [Abstract]
Reserve balance, beginning of period	$ 5,800,000	$ 5,533,000	$ 5,701,000	$ 5,745,000
Current period expense	399,000	561,000	1,541,000	2,528,000
Payments or credits to customers	(498,000)	(706,000)	(1,646,000)	(2,957,000)
Foreign currency translation	11,000	(39,000)	116,000	33,000
Reserve balance, end of period	5,712,000	5,349,000	5,712,000	5,349,000
Current portion of warranty accrual	(3,766,000)		(3,766,000)
Long-term portion of warranty accrual	$ (1,946,000)		$ (1,946,000)