Quarterly report pursuant to Section 13 or 15(d)

Stock Options (Details 3)

v2.4.0.6
Stock Options (Details 3) (USD $)
3 Months Ended
Feb. 28, 2013
Significant option groups outstanding and exercisable option and its price and contractual life  
Outstanding, Outstanding 1,177,848
Outstanding, Weighted Average Remaining Contractual Life (Years) 6 years 10 months 24 days
Outstanding, Weighted Average Exercise Price $ 2.15
Exercisable, Outstanding 972,866
Exercisable, Weighted Average Exercise Price $ 2.12
Range 1 [Member]
 
Significant option groups outstanding and exercisable option and its price and contractual life  
Range of Exercise Prices Minimum $ 0.42
Range of Exercise Prices Maximum $ 1.00
Outstanding, Outstanding 7,500
Outstanding, Weighted Average Remaining Contractual Life (Years) 2 years 1 month 24 days
Outstanding, Weighted Average Exercise Price $ 0.78
Exercisable, Outstanding 7,500
Exercisable, Weighted Average Exercise Price $ 0.78
Range 2 [Member]
 
Significant option groups outstanding and exercisable option and its price and contractual life  
Range of Exercise Prices Minimum $ 1.01
Range of Exercise Prices Maximum $ 2.00
Outstanding, Outstanding 529,259
Outstanding, Weighted Average Remaining Contractual Life (Years) 7 years 6 months 26 days
Outstanding, Weighted Average Exercise Price $ 1.69
Exercisable, Outstanding 516,763
Exercisable, Weighted Average Exercise Price $ 1.69
Range 3 [Member]
 
Significant option groups outstanding and exercisable option and its price and contractual life  
Range of Exercise Prices Minimum $ 2.01
Range of Exercise Prices Maximum $ 3.00
Outstanding, Outstanding 600,500
Outstanding, Weighted Average Remaining Contractual Life (Years) 6 years 9 months 26 days
Outstanding, Weighted Average Exercise Price $ 2.50
Exercisable, Outstanding 408,014
Exercisable, Weighted Average Exercise Price $ 2.58
Range 4 [Member]
 
Significant option groups outstanding and exercisable option and its price and contractual life  
Range of Exercise Prices Minimum $ 3.01
Range of Exercise Prices Maximum $ 4.00
Outstanding, Outstanding 40,589
Outstanding, Weighted Average Remaining Contractual Life (Years) 1 month 6 days
Outstanding, Weighted Average Exercise Price $ 3.34
Exercisable, Outstanding 40,589
Exercisable, Weighted Average Exercise Price $ 3.34