Consolidated Statements of Cash Flows (Going Concern Basis) (USD $) In Thousands, unless otherwise specified	8 Months Ended	9 Months Ended
	Mar. 23, 2013	Apr. 28, 2012
Cash flows from operating activities:
Net loss	$ (3,512)	$ (10,399)
Adjustments to reconcile net loss to net cash used in operating activities:
Gain on sale of discontinued operations	(7,084)	0
Tax benefit on sale of discontinued operations	(4,387)
Depreciation and amortization	991	2,139
Share-based compensation	1,275	2,872
Adjustments to provision for excess and obsolete inventory	144	381
Changes in operating assets and liabilities:
Accounts receivable	(146)	2,377
Inventories	(864)	1,701
Prepaids and other assets	(420)	158
Deferred revenue	(2,103)	(622)
Accounts payable	(594)	(867)
Accrued expenses and other liabilities	(3,768)	(43)
Accrued restructuring costs	296	(294)
Net cash used in operating activities	(20,172)	(2,597)
Cash flows from investing activities:
Purchases of property and equipment	(1)	(1,303)
Proceeds from sale of discontinued operations	19,015
Purchases of investments		(257,891)
Proceeds from sales of investments	196,872	2,050
Proceeds from maturities of investments	100,720	257,215
Net cash provided by (used in) investing activities	316,606	71
Cash flows from financing activities:
Payment of cash distributions to common stockholders	(413,302)
Proceeds from issuance of common stock	38	2,444
Net cash (used in) provided by financing activities	(413,264)	2,444
Net decrease in cash and cash equivalents	(116,830)	(82)
Cash and cash equivalents, beginning of period	136,654	60,765
Cash and cash equivalents, end of period	19,824	60,683
Cash paid for income taxes	$ 1,176	$ 183