Deferred Income on Sales to Distributors (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2012	Sep. 28, 2012
Deferred Revenue Arrangement [Line Items]
Deferred revenue on shipments to distributors	$ 3,947	$ 4,722
Deferred cost of goods sold on shipments to distributors	(377)	(362)
Reserves	36	36
Deferred income on sales to distributors	$ 3,606	$ 4,396

The carrying amount of consideration received or receivable from distributors less the associated costs of inventory shipped as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer.

No definition available.

Name:	mspd_DeferredIncomeOnSalesToDistributors
Namespace Prefix:	mspd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant