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Business and Funding (Details Narrative) | 12 Months Ended
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Oct. 31, 2020 USD ($) shares
Sale of shares of common stock, value | $ 40,811,000
Our at-the-Market Equity Offerings [Member] |
Net of expenses | $ 9,266,000
Sale of shares of common stock | shares | 3,854,305
An at-the-Market Equity Offerings [Member] |
Net of expenses | $ 8,839,000
Sale of shares of common stock | shares | 3,742,067
Shares of common stock, value | $ 50,000,000
An at-the-Market Equity Offerings [Member] | November 2019 [Member] |
Net of expenses | $ 427,000
Sale of shares of common stock | shares | 112,238
Wistar Institute [Member] |
Ownership Percentage | 5.00%

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