CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (Parentheticals) - USD ($)	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Research and Development Expense [Member]
Non-cash share-based compensation expenses	$ 397,523	$ 1,573,779
Selling, General and Administrative Expenses [Member]
Non-cash share-based compensation expenses	$ 623,811	$ 1,176,385