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Note 8 - Notes Payable and Bank Credit Facility (Details Textual) $ in Thousands		3 Months Ended		6 Months Ended
	Feb. 02, 2015 USD ($)	May 27, 2017 USD ($)	May 28, 2016 USD ($)	May 27, 2017 USD ($)	May 28, 2016 USD ($)	Nov. 26, 2016 USD ($)
Long-term Debt, Current Maturities		$ 3,346		$ 3,346		$ 3,290
Long-term Debt		3,977		3,977		7,111
Bank One [Member]
Line of Credit Facility, Maximum Borrowing Capacity		15,000		15,000
Line of Credit Facility, Remaining Borrowing Capacity		13,028		13,028
Letters of Credit Outstanding, Amount		1,972		1,972
Bank Two [Member]
Letters of Credit Outstanding, Amount		511		511
Real Estate Notes Payable Operated in Retail Segment [Member]
Long-term Debt		$ 1,029		$ 1,029		1,219
Debt Instrument, Interest Rate, Stated Percentage		6.73%		6.73%
Secured Debt, Current		$ 398		$ 398		385
Real Estate Notes Payable Operated in Retail Segment [Member] \| Financed Through Commercial Mortgages [Member]
Debt Instrument, Collateral Amount		5,791		5,791		5,858
Zenith Freight Lines [Member] \| Unsecured Debt [Member]
Debt Instrument, Face Amount	$ 9,000
Debt Instrument, Number of Annual Payments	3
Debt Instrument, Periodic Payment	$ 3,000
Amortization of Debt Discount (Premium)		19	$ 46	57	$ 112
Long-term Debt, Current Maturities		$ 2,948		$ 2,948		$ 2,904