Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Common Stock (Details Narrative)

v3.22.0.1
Note 13 - Common Stock (Details Narrative) - USD ($)
 3 Months Ended 9 Months Ended
Jan. 31, 2022
Oct. 31, 2021
Jul. 31, 2021
Jan. 31, 2021
Jan. 31, 2022
Apr. 30, 2021
Class of Stock [Line Items]            
Common Stock, Par or Stated Value Per Share           $ 0.001
Common Stock, Shares Authorized 500,000,000       500,000,000 500,000,000
Stock Issued During Period, Shares, Other         50,000  
Common Stock [Member]            
Class of Stock [Line Items]            
Stock Issued During Period, Shares, Acquisitions   21,972 685,321      
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture 46,939 243,615 62,500      
Stock Issued During Period, Shares, Conversion of Convertible Securities   1,321,966 818,333 1,212,118    
Stock Issued During Period, Shares, Issued for Services   20,000 91,667      
[custom:StockIssuedDuringPeriodSharesAcquisitions1]   3,588,272   5,227,273    
Stock Issued During Period, Shares, Restricted Stock Award, Gross 45,044 162,500        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period   81,115        
[custom:StockIssuedDuringPeriodSharesAppliedAgainstNotePayable] 62,500          
[custom:StockIssuedDuringPeriodSharesAppliedAgainstPayrollTaxObligationsOnRestrictedStock] 29,483          
Series A Preferred Stock 1 [Member]            
Class of Stock [Line Items]            
Stock Issued During Period, Shares, Conversion of Convertible Securities   158,704   50,000    
Common Stock Offering 1 [Member]            
Class of Stock [Line Items]            
Sale of Stock, Number of Shares Issued in Transaction         4,000,000  
[custom:SaleOfStockGrossConsiderationReceivedOnTransaction]         $ 16,000,000  
Sale of Stock, Consideration Received on Transaction         $ 14,600,000  
Common Stock Offering 2 [Member]            
Class of Stock [Line Items]            
Sale of Stock, Number of Shares Issued in Transaction         13,333,334  
[custom:SaleOfStockGrossConsiderationReceivedOnTransaction]         $ 60,000,000  
Sale of Stock, Consideration Received on Transaction         $ 55,500,000