Carrying Amounts of Major Classes of Assets and Liabilities of Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 02, 2014	Apr. 30, 2014
ASSETS:
Restricted cash	$ 104
Accounts receivable, net	1,097	1,036
Prepaid expenses and other current assets	48	49
Total current assets	1,249	1,085
Property and equipment, net	37	37
Goodwill	9,002	9,002
Acquired intangible assets, net	32,813	32,813
Total assets	43,101	42,937
LIABILITIES:
Accounts payable	76	221
Accrued expenses and other current liabilities	823	895
Deferred revenue	2,230	2,505
Total Liabilities	$ 3,129	$ 3,621