Note 9 - Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2015	Nov. 29, 2014
Transportation Equipment [Member] | Minimum [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	2 years
Transportation Equipment [Member] | Maximum [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	7 years
Lease Obligations of Licensee Operators [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Loss Contingency, Estimate of Possible Loss (in Dollars)	3,020	$ 3,164
Minimum [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Operating Lease Lease Term	1 year
Renewal Term on Operating Lease	5 years
Lease Guarantees Term	1 year
Maximum [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Operating Lease Lease Term	15 years
Renewal Term on Operating Lease	15 years
Lease Guarantees Term	10 years