Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Nov. 26, 2016	Nov. 28, 2015
Allowance for doubtful accounts	$ 799	$ 1,175
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	10,722,947	10,916,021
Common stock, shares outstanding (in shares)	10,722,947	10,916,021