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Consolidated Balance Sheets (Parenthetical) (USD $)	Aug. 31, 2011	Nov. 30, 2010
Consolidated Balance Sheets [Abstract]
Accounts receivable and advances, allowance for doubtful accounts	$ 1,062,040	$ 783,354
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	11,764,325	11,752,574
Common stock, shares outstanding	11,764,325	11,752,574

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