Goodwill and Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Jan. 01, 2017	Jul. 03, 2016
Finite-Lived Intangible Assets [Line Items]
Original cost	$ 17,100	$ 17,100
Accumulated amortization	(11,000)	(9,900)
Net	6,100	7,200
Intellectual property [Member]
Finite-Lived Intangible Assets [Line Items]
Original cost	13,100	13,100
Accumulated amortization	(9,000)	(8,100)
Net	4,100	5,000
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Original cost	4,000	4,000
Accumulated amortization	(2,000)	(1,800)
Net	$ 2,000	$ 2,200