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Stock-based Compensation - Additional Information (Details) - USD ($)
12 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Mar. 15, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Contractual term 10 years    
Service-based Stock Option      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Unrecognized compensation costs $ 500,000 $ 11,700  
Time-based Stock Option      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Share based compensation option granted 931,500 9,848  
Performance-based Stock Option      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Share based compensation option granted   159,621  
Unrecognized compensation costs $ 1,700,000 $ 1,800,000  
Executive Directors and Employees      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Vesting period 3 years    
Directors      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Vesting period 12 months    
Directors | 2023 Equity Incentive Plan      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Aggregate number of shares issued     2,500,000
Number of shares common stock available for issuance     832,195