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Note 8 - Notes Payable and Bank Credit Facility (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	May 27, 2017	May 26, 2018	May 27, 2017	Nov. 25, 2017
Long-term Debt, Total		$ 541		$ 3,734
Long-term Debt, Current Maturities, Total		432		3,405
Bank One [Member]
Line of Credit Facility, Maximum Borrowing Capacity		15,000
Letters of Credit Outstanding, Amount		2,249
Line of Credit Facility, Remaining Borrowing Capacity		12,751
Bank Two [Member]
Letters of Credit Outstanding, Amount		381
Real Estate Notes Payable Operated in Retail Segment [Member]
Long-term Debt, Total		$ 541		747
Debt Instrument, Interest Rate, Stated Percentage		6.73%
Long-term Debt, Current Maturities, Total		$ 432		418
Real Estate Notes Payable Operated in Retail Segment [Member] \| Financed Through Commercial Mortgages [Member]
Debt Instrument, Collateral Amount		5,663		$ 5,727
Zenith Freight Lines [Member] \| Unsecured Debt [Member]
Amortization of Debt Discount (Premium)	$ 19	$ 13	$ 57