Retirement Benefit Plan (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Net periodic benefit cost
Service cost	$ 170	$ 178	$ 524	$ 694
Interest expense	144	155	426	508
Expected return on plan assets	(45)	(44)	(138)	(137)
Amortization of actuarial losses	44	0	129	0
Loss on settlement	0	0	0	992
Gain from curtailment	0	0	0	(1,265)
Net periodic benefit cost	313	289	941	792
Japan plan
Net periodic benefit cost
Loss on settlement				1,000
Gain from curtailment				$ 1,300