v3.23.1
Summary of Significant Accounting Policies - Summary of Property and Equipment (Details) - USD ($)
Jan. 31, 2023
Apr. 30, 2022
Apr. 30, 2021
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 525,703 $ 514,987 $ 513,055
Less: Accumulated depreciation (465,042) (444,952) (418,386)
Property and equipment, net 60,661 70,035 94,669
Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 390,328 379,612 377,680
Furniture & fixtures      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 102,563 102,563 102,563
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 32,812 $ 32,812 $ 32,812