Restructuring (Details) - USD ($)	3 Months Ended	12 Months Ended
	Nov. 28, 2015	Nov. 29, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 5,629,000	$ 0
Accrued Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Remaining severance and employee termination benefits	4,042,000
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge	1,047,000
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 4,582,000