Investments in Marketable Securities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 28, 2013	Jun. 29, 2013
Available-for-Sale Securities
Amortized Cost	$ 91,568	$ 87,464
Unrealized Gains	225	231
Unrealized Losses	(543)	(856)
Net Unrealized Gains (Losses)	(318)	(625)
Fair Value	91,250	86,839
Time deposits [Member]
Available-for-Sale Securities
Amortized Cost	13,431	12,087
Unrealized Gains
Unrealized Losses
Net Unrealized Gains (Losses)
Fair Value	13,431	12,087
Repurchase agreements [Member]
Available-for-Sale Securities
Amortized Cost	823	1,997
Unrealized Gains
Unrealized Losses
Net Unrealized Gains (Losses)
Fair Value	823	1,997
National government and agency securities [Member]
Available-for-Sale Securities
Amortized Cost	3,738	4,348
Unrealized Gains	87	106
Unrealized Losses	(3)	(3)
Net Unrealized Gains (Losses)	84	103
Fair Value	3,822	4,451
State and municipal bond obligations [Member]
Available-for-Sale Securities
Amortized Cost	4,905	3,776
Unrealized Gains	10	9
Unrealized Losses	(24)	(27)
Net Unrealized Gains (Losses)	(14)	(18)
Fair Value	4,891	3,758
Corporate bonds and notes [Member]
Available-for-Sale Securities
Amortized Cost	53,567	48,438
Unrealized Gains	97	71
Unrealized Losses	(410)	(716)
Net Unrealized Gains (Losses)	(313)	(645)
Fair Value	53,245	47,793
Asset backed Securities [Member]
Available-for-Sale Securities
Amortized Cost	8,960	10,063
Unrealized Gains	10	19
Unrealized Losses	(61)	(60)
Net Unrealized Gains (Losses)	(51)	(41)
Fair Value	8,909	10,022
Mortgage backed securities [Member]
Available-for-Sale Securities
Amortized Cost	6,144	6,755
Unrealized Gains	21	26
Unrealized Losses	(45)	(50)
Net Unrealized Gains (Losses)	(24)	(24)
Fair Value	$ 6,120	$ 6,731