Note 8 - Notes Payable and Bank Credit Facility (Details) - Real Estate Notes Payable and Bank Debt - USD ($) $ in Thousands	May. 30, 2015	Nov. 29, 2014
Note 8 - Notes Payable and Bank Credit Facility (Details) - Real Estate Notes Payable and Bank Debt [Line Items]
Principal Balance	$ 15,639
Unamortized Discount	(463)
Net Carrying Amount	15,176
Less current portion, Principal Balance	(4,691)	$ (316)
Less current portion, Unamortized Discount	263
Less current portion, Net Carrying Amount	(4,428)	(316)
Total long-term debt, Principal Balance	10,948	1,902
Total long-term debt, Unamortized Discount	(200)
Total long-term debt, Net Carrying Amount	10,748	1,902
Zenith Note Payable [Member]
Note 8 - Notes Payable and Bank Credit Facility (Details) - Real Estate Notes Payable and Bank Debt [Line Items]
Principal Balance	9,000
Unamortized Discount	(463)
Net Carrying Amount	8,537
Transportation Equipment Notes Payable [Member]
Note 8 - Notes Payable and Bank Credit Facility (Details) - Real Estate Notes Payable and Bank Debt [Line Items]
Principal Balance	3,224
Net Carrying Amount	3,224
Real Estate Notes Payable [Member]
Note 8 - Notes Payable and Bank Credit Facility (Details) - Real Estate Notes Payable and Bank Debt [Line Items]
Principal Balance	3,415	2,218
Net Carrying Amount	$ 3,415	$ 2,218