Accounts Payable, Accrued Liabilities and Guarantees (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Aug. 31, 2013	Sep. 01, 2012
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Warranty accrual at beginning of period	$ 1,533	$ 2,580
Warranty accrual added through business acquisitions	0	32
Accruals for warranties issued during the period	222	242
Adjustments related to pre-existing warranties	(257)	120
Settlements made during the period	(334)	(631)
Other adjustments, including currency translation	(2)	(36)
Warranty accrual at end of period	$ 1,162	$ 2,307