Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Details)

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Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
Jan. 31, 2023
Apr. 30, 2022
Jan. 31, 2022
Apr. 30, 2021
Restricted Cash and Cash Equivalents Items [Line Items]        
Cash and cash equivalents $ 1,603,501 $ 6,482,750 $ 5,969,286  
Restricted cash 4,923,525 6,433,397 1,433,397  
Total cash and cash equivalents and restricted cash as shown on the statement of cash flows 6,527,026 12,916,147 $ 7,402,683 $ 13,666,079
Letter of credit for level of Title IV funding at USU        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash 0 9,872    
Collateral for corporate credit card at AGI        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash 250,000 250,000    
Letters of credit for operating leases at AU and USU        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash 1,173,525 1,173,525    
Collateral for surety bond at AU        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash $ 3,500,000 $ 5,000,000