Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity (Details)

v2.4.0.8
Shareholders' Equity (Details) (USD $)
9 Months Ended
May 31, 2013
Number of options  
Outstanding, beginning - Number of options 215,000
Granted - Number of options 32,500
Exercised - Number of options   
Forfeited or expired - Number of options   
Outstanding, ending - Number of options 247,500
Exercisable - Number of options 205,000
Weighted average exercise price  
Outstanding, beginning - Weighted average exercise price $ 5.88
Granted - Weighted average exercise price $ 3.15
Exercised - Weighted average exercise price   
Forfeited or expired - Weighted average exercise price   
Outstanding, ending - Weighted average exercise price $ 5.52
Exercisable - Weighted average exercise price $ 6.03
Weighted average remaining contractual term  
Outstanding, ending - Weighted average remaining contractual term 6 years 5 months
Exercisable - Weighted average remaining contractual term 5 years 6 months
Approximate aggregate intrinsic value  
Outstanding, ending - Approximate aggregate intrinsic value $ 16,147,500
Exercisable - Approximate aggregate intrinsic value $ 11,416,500