STOCKHOLDERS' EQUITY (Details 3) (USD $)	9 Months Ended		3 Months Ended	9 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2013 Options	Aug. 31, 2013 Options
Stock option activity
Outstanding at the beginning of the period (in shares)	796,794	868,290
Exercised (in shares)	(21,794)	(20,000)	(21,794)	(21,794)
Expired (in shares)		(20,000)
Outstanding at the end of the period (in shares)	775,000	828,290
Weighted average exercise price
Outstanding at the beginning of the period (in dollars per share)	$ 3.96	$ 3.73
Exercised (in dollars per share)	$ 1.30	$ 1.00
Expired (in dollars per share)		$ 1.00
Outstanding at the end of the period (in dollars per share)	$ 4.03	$ 3.86
Weighted average remaining contractual Life
Outstanding and exercisable at the end of the period	1 year 7 months 6 days	2 years 6 months
Aggregate Intrinsic Value
Outstanding and exercisable at the end of the period	$ 23,000
Unrecognized compensation cost
Unrecognized compensation cost related to nonvested share-based compensation arrangements	$ 2,081,000
Weighted-average period for recognition of unrecognized compensation cost	2 years 1 month 6 days