Note 10 - Pension and Postretirement Benefits - Statement of Financial Position as of Fiscal Year End (Details) - USD ($) $ in Thousands	Nov. 28, 2015	Nov. 29, 2014
United States Pension Plan of US Entity [Member]
Non-current assets
Current liabilities	$ (1,490)	$ (1,510)
Non-current liabilities	(38,147)	(22,750)
Ending balance	(39,637)	(24,260)
Foreign Pension Plan [Member]
Non-current assets	4,282	7,592
Current liabilities	(1,100)	(1,248)
Non-current liabilities	(32,113)	(38,350)
Ending balance	(28,931)	(32,006)
Other Postretirement Benefit Plan [Member]
Non-current assets	15,755	12,054
Current liabilities	(191)	(201)
Non-current liabilities	(2,902)	(3,146)
Ending balance	12,662	8,707
Non-current liabilities	$ (76,324)	$ (67,193)