Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Feb. 28, 2015	Feb. 28, 2014
Per Share Results
Loss from continuing operations for computation of basic and diluted per share results, net of tax	$ (708)	$ (1,098)
Loss from discontinued operations for computation of basic and diluted per share results, net of tax		(272)
Net loss	$ (708)	$ (1,370)
Weighted average shares outstanding for computation of basic per share results	5,150,000	5,147,000
Adjusted weighted average shares for computation of diluted per share results	5,150,000	5,147,000
Incremental shares from assumed exercise of stock options excluded due to anti-dilutive effect	18,000	16,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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