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Stockholders' Equity and Warrant Liabilities - Schedule of Warrant Activity (Details) | 6 Months Ended
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Apr. 30, 2021 shares
Orion Energy Partners Investment Agent, LLC Credit Facility [Member] |
Class of Warrant or Right, Outstanding | 2,700,000
Common stock issued during period, warrants exercised | (2,700,000)
May 2017 Offering - Series C Warrants |
Class of Warrant or Right, Outstanding | 964,128
Common stock issued during period, warrants exercised | (14,026)
Class of Warrant or Right, Outstanding | 950,102

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- Details
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