Special Charges (Details) (USD $)	3 Months Ended
	Feb. 28, 2015	Mar. 01, 2014
Special Charges Details [Abstract]
Professional Services	$ 472,000	$ 1,708,000
Other related costs	304,000	2,841,000
Workforce reduction costs	56,000	2,059,000
Facility exit costs	1,529,000	5,126,000
Special charges, net	2,361,000	11,734,000
Cash [Member]
Restructuring costs [Line Items]
Facility shut down costs	1,395,000	3,574,000
Noncash [Member]
Restructuring costs [Line Items]
Facility shut down costs	$ 134,000	$ 1,552,000