| 
           CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parentheticals) (USD $) 
         | 
        3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
| 
           Apr. 30, 2015 
         | 
        
           Apr. 30, 2014 
         | 
        
           Apr. 30, 2015 
         | 
        
           Apr. 30, 2014 
         | 
      |
| Non-cash Stock Option Compensation Expenses | $ 1,065,929us-gaap_AllocatedShareBasedCompensationExpense | $ 1,156,468us-gaap_AllocatedShareBasedCompensationExpense | $ 1,557,708us-gaap_AllocatedShareBasedCompensationExpense | $ 1,877,106us-gaap_AllocatedShareBasedCompensationExpense | 
| X | ||||||||||
| 
             
- Definition 
          Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  |