Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Nov. 30, 2013	Aug. 31, 2013	Jun. 01, 2013	Mar. 02, 2013	Dec. 01, 2012	Sep. 01, 2012	Jun. 02, 2012	Mar. 03, 2012	Nov. 30, 2014	Nov. 30, 2013	Dec. 01, 2012
Per Share Results
Income (loss) from continuing operations for computation of basic and diluted per share results, net of tax	$ 273	$ (198)	$ (225)	$ (1,098)	$ 1,110	$ (490)	$ (394)	$ 1,684	$ (1,248)	$ 1,910	$ 196
Gain (Loss) from landscape nursery business, including loss on sale of assets of $28, net of tax		26	390	(272)	(7,200)	(439)	282	(374)	144	(7,731)	770
Net (loss) income	$ 273	$ (172)	$ 165	$ (1,370)	$ (6,090)	$ (929)	$ (112)	$ 1,310	$ (1,104)	$ (5,821)	$ 966
Weighted average shares outstanding for computation of basic per share results									5,148,000	5,144,000	5,138,000
Incremental shares from assumed exercise of Griffin stock options										8,000	5,000
Adjusted weighted average shares for computation of diluted per share results									5,148,000	5,152,000	5,143,000
Incremental shares from assumed exercise of stock options excluded due to anti-dilutive effect									11,000