Summary of Significant Accounting Policies (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Jun. 27, 2010	Jul. 01, 2012	Jul. 03, 2011
Summary of Significant Accounting Policies (Textual) [Abstract]
Unbilled receivables		$ 5,600,000	$ 3,500,000
Gain (losses) on extinguishment of debt	7,000,000
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Validity period of products for extended warranty		less than eight years
Benefit rate realized upon settlement minimum		50.00%
Convertible Subordinated Debt [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Purchase price of aggregate principal amount of the Notes remained outstanding	57,700,000
Purchase pursuant to the offer, aggregate principal amount of the Notes remained outstanding	56,900,000
Contingently convertible notes outstanding		$ 0	$ 0
Maximum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Short-term investments, maturity period, months		36
Range of standard warranty agreement		20 years
Applicability of extended warranty contract		9 years
Minimum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Short-term investments, maturity period, months		3
Range of standard warranty agreement		1 year
Applicability of extended warranty contract		1 year