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Amount of assets pledged to secure a debt instrument.

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Note 9 - Notes Payable and Bank Credit Facility (Details Textual) $ in Thousands		3 Months Ended		6 Months Ended
	Feb. 02, 2015 USD ($)	May 28, 2016 USD ($)	May 30, 2015 USD ($)	May 28, 2016 USD ($)	May 30, 2015 USD ($)	Feb. 27, 2016	Feb. 02, 2016	Dec. 05, 2015 USD ($)	Nov. 28, 2015 USD ($)
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
Debt Instrument, Interest Rate, Stated Percentage	0.62%						1.14%
Amortization of Debt Discount (Premium)		$ 46	$ 78	$ 112	$ 101
Long-term Debt, Current Maturities		$ 2,852		$ 2,852					$ 2,796
Transportation Equipment Notes Payable [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage		2.63%		2.63%
Debt Instrument, Term				1 year
Transportation Equipment Notes Payable [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage		3.75%		3.75%
Debt Instrument, Term				4 years 60 days
Transportation Equipment Notes Payable [Member]
Long-term Debt		$ 7,207		$ 7,207					2,152
Secured Debt, Current		2,108		2,108					901
Debt Instrument, Collateral Amount		9,260		9,260					3,796
Real Estate Notes Payable Operated in Retail Segment [Member] \| Financed Through Commercial Mortgages [Member]
Debt Instrument, Collateral Amount		5,925		5,925					$ 5,993
Real Estate Notes Payable Operated in Retail Segment [Member]
Debt Instrument, Interest Rate, Stated Percentage									6.73%
Long-term Debt		1,536		1,536					$ 1,709
Secured Debt, Current		363		363					351
Real Estate Notes Payable Operated in Logistical Services Segment [Member]
Debt Instrument, Interest Rate, Stated Percentage						3.75%
Debt Instrument, Collateral Amount		6,157		6,157					6,226
Secured Debt		1,115		1,115					1,224
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid		1,005		1,005
Bank One [Member]
Line of Credit Facility, Maximum Borrowing Capacity								$ 15,000
Letters of Credit Outstanding, Amount		1,970		1,970
Line of Credit Facility, Remaining Borrowing Capacity		13,030		13,030
Bank Two [Member]
Letters of Credit Outstanding, Amount		356		356
Long-term Debt, Current Maturities		6,438		6,438					5,273
Long-term Debt		$ 15,658		$ 15,658					$ 13,773