Consolidated Statement of Changes in Net Assets (Liquidation Basis) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jan. 25, 2014	Jan. 25, 2014
Increase in estimated net realizable value for other assets		$ 1,100
Corporate Liquidity
Net assets in liquidation at beginning of period	13,637	13,637
Increase in estimated costs during the Dissolution period	(184)	(184)
Increase in estimated net realizable value for other assets	47	47
Increase in estimated net realizable value for other receivable	1,107	1,107
Increase in estimated net realizable value for patents	2,000	2,000
liabilities	$ 16,607	$ 16,607