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Stock-Based Compensation Plans (Details) (Employees, Consultants and Outside Directors [Member], USD $)	3 Months Ended
	Feb. 28, 2013	Feb. 29, 2012
Employees, Consultants and Outside Directors [Member]
Stock Based Compensation Plans (Textual)
Compensation expense	$ 7,000	$ 52,000
Unrecognized employee stock-compensation expense	$ 46,000
Recognition period of previously granted unvested options	2 years

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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