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Subsequent Events	12 Months Ended
	Oct. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	Note 21. Subsequent Events Authorized Common Stock On December 14, 2017, the number of authorized shares of the Company’s common stock was increased from 125,000,000 to 225,000,000, by a vote of the holders of a majority of the outstanding shares of the Company’s common stock. NASDAQ Marketplace Rule 5635(d) On December 14, 2017, in accordance with NASDAQ Marketplace Rule 5635(d), the Company’s common stockholders approved the issuance of shares of the Company’s common stock exceeding 19.9% of the number of shares outstanding on September 5, 2017, upon the conversion and/or redemption of the Series C Convertible Preferred Stock issued in an underwritten offering in September 2017.   Tax Cuts and Jobs Act On December 22, 2017 the Tax Cuts and Jobs Act (the “Act”) was signed into law. While enacted subsequent to this balance sheet date, the Act changes existing United States tax law and includes numerous provisions that will affect the Company. Specifically, the reduction of the U.S. federal tax rate from 34% to 21% effective January 1, 2018 will reduce the Company’s deferred tax liability IPR&D by approximately $1.0 million with the benefit to be reflected in the first quarter of fiscal year 2018. The reduction in the federal tax rate will also reduce the value of the Company’s existing deferred tax assets, though an offsetting decrease to valuation allowance would be recorded.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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