Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Apr. 30, 2021	Oct. 31, 2020
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	500,000,000	337,500,000
Common stock, shares issued	322,492,804	294,706,758
Common stock, shares outstanding	322,492,804	294,706,758
Treasury stock, shares	61,836	56,411
Series B Preferred Stock [Member]
Preferred Stock, Liquidation Preference, Value	$ 64,020	$ 64,020