Note 13 - Reconciliation of Basic and Diluted Loss Per Share (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 27, 2016	Feb. 28, 2015
Basic earnings per share	$ 3,234	$ 5,956
Basic earnings per share (in shares)	10,780,229	10,480,656
Basic earnings per share (in dollars per share)	$ 0.30	$ 0.57
Add effect of dilutive securities: Options and restricted shares (in shares)	104,327	175,856
Diluted earnings per share	$ 3,234	$ 5,956
Diluted earnings per share (in shares)	10,884,556	10,656,512
Diluted earnings per share (in dollars per share)	$ 0.30	$ 0.56
Add effect of dilutive securities: Options and restricted shares (in dollars per share)		$ (0.01)