Warranty (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 27, 2013	Dec. 28, 2012	Dec. 27, 2013	Dec. 28, 2012
Activity in warranty reserve [Abstract]
Reserve balance, beginning of period	$ 5,664,000	$ 5,462,000	$ 5,701,000	$ 5,745,000
Current period expense	771,000	1,086,000	1,142,000	1,967,000
Payments or credits to customers	(767,000)	(1,066,000)	(1,148,000)	(2,251,000)
Foreign currency translation	132,000	51,000	105,000	72,000
Reserve balance, end of period	5,800,000	5,533,000	5,800,000	5,533,000
Current portion of warranty accrual	(3,876,000)		(3,876,000)
Long-term portion of warranty accrual	$ (1,924,000)		$ (1,924,000)