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CONSOLIDATED STATEMENTS OF OPERATIONS (Parentheticals) - USD ($) | 12 Months Ended
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Oct. 31, 2019 | Oct. 31, 2018
Research and Development Expense [Member] |  |
Non-cash share-based compensation expenses | $ 2,825,630 | $ 4,596,866
Selling, General and Administrative Expenses [Member] |  |
Non-cash share-based compensation expenses | $ 2,888,115 | $ 4,298,748

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