Note 10 - Financial Instruments and Fair Value Measurements (Tables)

9 Months Ended

Aug. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping [Table Text Block]

	August 31, 2013				November 24, 2012
	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets:
Cash and cash equivalents	$	8,904	$	8,904	$	45,566	$	45,566
Accounts receivable, net		16,219		16,219		15,755		15,755
Short-term investments		28,125		28,125		-		-
Liabilities:
Accounts payable	$	19,048	$	19,048	$	22,405	$	22,405
Real estate notes payable		3,115		3,104		3,294		3,668