Note 12 - Earnings Per Share - Reconciliation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	May 27, 2017	May 28, 2016	May 27, 2017	May 28, 2016
Diluted earnings per share, Weighted Average Shares (in shares)	10,722,326	10,912,691	10,718,845	10,916,240
Diluted earnings per share (in dollars per share)	$ 0.54	$ 0.31	$ 0.81	$ 0.61
Basic earnings per share, Net Income	$ 5,842	$ 3,385	$ 8,703	$ 6,619
Basic earnings per share, Weighted Average Shares (in shares)	10,648,033	10,767,082	10,630,836	10,773,656
Basic earnings per share (in dollars per share)	$ 0.55	$ 0.31	$ 0.82	$ 0.61
Options and restricted shares, Weighted Average Shares (in shares)	74,293	145,609	88,009	142,584
Options and restricted shares, Net Income Per Share (in dollars per share)	$ (0.01)		$ (0.01)
Diluted earnings per share, Net Income	$ 5,842	$ 3,385	$ 8,703	$ 6,619