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Stockholders' Equity (Details) - USD ($)
3 Months Ended 6 Months Ended 22 Months Ended 28 Months Ended
Apr. 10, 2024
Jul. 12, 2022
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2024
Apr. 30, 2024
Oct. 31, 2024
Oct. 31, 2023
Stockholders' Equity Note                
Common stock, par value     $ 0.0001   $ 0.0001 $ 0.0001   $ 0.0001
Common Stock                
Stockholders' Equity Note                
Shares sold during the period     6,463,716 949,438        
2022 Open Market Sale Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC                
Stockholders' Equity Note                
Percentage of sales commission   2.00%            
2022 Open Market Sale Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock                
Stockholders' Equity Note                
Average sale price per share           $ 0.98    
2022 Open Market Sale Agreement | Jefferies LLC and Barclays Capital Inc. | Common Stock                
Stockholders' Equity Note                
Percentage of sales commission 2.00%              
Aggregate Offering Price $ 300,000,000.0              
Shares sold during the period 0              
2022 Open Market Sale Agreement | Maximum | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock                
Stockholders' Equity Note                
Shares sold during the period   95,000,000.0            
Amended Open Market Sales Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock                
Stockholders' Equity Note                
Shares sold during the period 0       6,500,000   6,500,000  
Aggregate Offering Price $ 300.0              
Average sale price per share         $ 0.98      
Common stock issuance, net of fees         $ 5,900,000      
Sales commission $ 100,000       100,000      
Gross proceeds from issuance of common stock         6,300,000      
Net proceeds from issuance of common stock         5,900,000      
Payments of underwriting discounts and commissions         300,000      
Offering price     $ 293,700,000   $ 293,700,000 $ 293,700,000