Note 12 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Feb. 27, 2016	Nov. 28, 2015
Minimum [Member] | Transportation Equipment [Member]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	2 years
Minimum [Member]
Operating Lease, Lease Term	1 year
Renewal Term On Operating Lease	5 years
Lease Guarantees Term	1 year
Maximum [Member] | Transportation Equipment [Member]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	7 years
Maximum [Member]
Operating Lease, Lease Term	15 years
Renewal Term On Operating Lease	15 years
Lease Guarantees Term	10 years
Lease Obligations of Licensee Operators [Member]
Loss Contingency, Estimate of Possible Loss	$ 2,386	$ 2,494