Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (Parentheticals)

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (Parentheticals) - USD ($)
3 Months Ended 6 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Apr. 30, 2018
Apr. 30, 2017
Research and Development Expense [Member]        
Non-cash Stock option compensation expenses $ 155,769 $ 68,928 $ 195,826 $ 148,628
Selling, General and Administrative Expenses [Member]        
Non-cash Stock option compensation expenses $ 175,941 $ 122,991 $ 402,857 $ 303,028