Commitments, Contingencies and Guarantees (Details 6) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010
Net rent expense
Rent expense, net	$ 7,926	$ 7,522	$ 7,921

Rent expense for each period for which an income statement is presented for minimum lease payments, contingent rentals, and sublease rentals.

No definition available.

Name:	sndk_OperatingLeasesRentExpenses
Namespace Prefix:	sndk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration