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
	Dec. 03, 2016 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 December 3, 2016
Amortization of prior service cost (benefit)	$ 29
Amortization of net actuarial (gain) loss	5,229
Total	5,258
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 December 3, 2016
Amortization of prior service cost (benefit)	(3)
Amortization of net actuarial (gain) loss	3,537
Total	3,534
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 December 3, 2016
Amortization of prior service cost (benefit)
Amortization of net actuarial (gain) loss	1,010
Total	$ 1,010