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5. SHAREHOLDERS' EQUITY (Details 2) (USD $)
3 Months Ended
Nov. 30, 2012
Awards outstanding weighted average remaining contractual life 5 years
Stock Options One
 
Exercise price low 1.00
Exercise price high 1.50
Awards Outstanding 382,700
Awards outstanding weighted average remaining contractual life 4 years 6 months
Weighted-Average Exercise Price Per Share  
Outstanding 1.07
Awards exercisable 311,900
Awards exercisable weighted average remaining contractual life 4 years 1 month 7 days
Awards exercisable weighted average exercise price 1.08
Stock Options Two
 
Exercise price low 1.51
Exercise price high 3.00
Awards Outstanding 154,600
Awards outstanding weighted average remaining contractual life 3 years 11 months
Weighted-Average Exercise Price Per Share  
Outstanding 1.88
Awards exercisable 122,200
Awards exercisable weighted average remaining contractual life 3 years
Awards exercisable weighted average exercise price 1.73
Stock Options Three
 
Exercise price low 3.01
Exercise price high 4.50
Awards Outstanding 185,100
Awards outstanding weighted average remaining contractual life 4 years 8 months 15 days
Weighted-Average Exercise Price Per Share  
Outstanding 3.26
Awards exercisable 54,400
Awards exercisable weighted average remaining contractual life 4 years 9 months 26 days
Awards exercisable weighted average exercise price 3.10
Stock Options Four
 
Exercise price low 4.51
Exercise price high 6.68
Awards Outstanding 24,000
Awards outstanding weighted average remaining contractual life 4 years 9 months 26 days
Weighted-Average Exercise Price Per Share  
Outstanding 5.33
Awards exercisable 4,000
Awards exercisable weighted average remaining contractual life 4 years 9 months 26 days
Awards exercisable weighted average exercise price 6.68
Stock Options
 
Awards Outstanding 746,400
Awards outstanding weighted average remaining contractual life 4 years 6 months
Weighted-Average Exercise Price Per Share  
Outstanding 1.92
Awards exercisable 492,500
Awards exercisable weighted average remaining contractual life 3 years 11 months
Awards exercisable weighted average exercise price 1.51