Stockholders' Equity - Per Share Results (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Per Share Results
Net loss	$ (379)	$ (234)	$ (714)	$ (942)
Weighted average shares outstanding for computation of basic per share results	5,150,000	5,150,000	5,151,000	5,150,000
Adjusted weighted average shares for computation of diluted per share results	5,150,000	5,150,000	5,151,000	5,150,000
Incremental shares from assumed exercise of stock options excluded due to anti-dilutive effect	2,000	23,000	2,000	19,000