Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2014	Jun. 01, 2013	May 31, 2014	Jun. 01, 2013
Per Share Results
(Loss) income from continuing operations for computation of basic and diluted per share results, net of tax	$ (225)	$ (394)	$ (1,323)	$ 1,290
Income (loss) from discontinued operations for computation of basic and diluted per share results, net of tax	390	282	118	(92)
Net income (loss)	$ 165	$ (112)	$ (1,205)	$ 1,198
Weighted average shares outstanding for computation of basic per share results	5,147,000	5,142,000	5,147,000	5,141,000
Incremental shares from assumed exercise of Griffin stock options				6,000
Adjusted weighted average shares for computation of diluted per share results	5,147,000	5,142,000	5,147,000	5,147,000
Incremental shares from assumed exercise of stock options excluded due to anti-dilutive effect	12,000	8,000	13,000