Quarterly report pursuant to sections 13 or 15(d)

Stockholders' Equity (Schedule of Assumptions Used In Valuing Stock Options) (Details)

v2.4.0.8
Stockholders' Equity (Schedule of Assumptions Used In Valuing Stock Options) (Details)
3 Months Ended
Oct. 31, 2013
Stock Incentive Plan To Employees And Directors [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected life (years) 3 years 6 months
Expected volatility 46.70%
Weighted-average volatility 46.70%
Risk-free interest rate 0.38%
Dividend yield 0.00%
Stock Incentive Plan To Non Employees [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected volatility   
Weighted-average volatility   
Risk-free interest rate   
Dividend yield