Note 10 - Pension and Postretirement Benefits - Amounts Expected to Be Amortized from AOCI Into Net Periodic Benefit Costs Over Next Fiscal Year (Details) $ in Thousands	12 Months Ended
	Nov. 28, 2015 USD ($)
United States Pension Plan of US Entity [Member]
Amounts expected to be amortized from accumulated other comprehensive income into net periodic benefit costs over next fiscal year as of November 28, 2015
Amortization of prior service cost (benefit)	$ 29
Amortization of net actuarial (gain) loss	5,270
Total	5,299
Foreign Pension Plan [Member]
Amounts expected to be amortized from accumulated other comprehensive income into net periodic benefit costs over next fiscal year as of November 28, 2015
Amortization of prior service cost (benefit)	(4)
Amortization of net actuarial (gain) loss	3,220
Total	3,216
Other Postretirement Benefit Plan [Member]
Amounts expected to be amortized from accumulated other comprehensive income into net periodic benefit costs over next fiscal year as of November 28, 2015
Amortization of prior service cost (benefit)	(41)
Amortization of net actuarial (gain) loss	2,169
Total	$ 2,128