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Summary of Significant Accounting Policies (Details Narrative) - USD ($)
 12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Aug. 31, 2020
Property, Plant and Equipment [Line Items]      
Revenue remaining performance obligation $ 600,000    
Revenue remaining performance obligation, percentage 100.00%    
Alternative Investment $ 49,400,000    
Investment Income, Net, Amortization of Discount and Premium 60,000    
Investment Owned, at Cost 300,000    
Cash and Cash Equivalents, at Carrying Value $ 7,885,000 $ 83,028,000  
Antidilutive securities excluded from computation of earnings per share, amount 6,353,422 5,163,020  
Share based compensation $ 1,200,000 $ 800,000  
Impairment of intangible assets $ 0    
Income tax likely percentage description greater than 50%    
Liquidation of Subsidiary $ 157,000    
AUSTRALIA      
Property, Plant and Equipment [Line Items]      
Liquidation of Subsidiary $ 200,000    
Trade Names [Member]      
Property, Plant and Equipment [Line Items]      
Intangible asset estimated lives 12 years    
Customer Relationships [Member]      
Property, Plant and Equipment [Line Items]      
Intangible asset estimated lives 10 years    
Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 3 years    
Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 7 years    
Santander Bank [Member]      
Property, Plant and Equipment [Line Items]      
Letters of credit issued amount $ 65,000    
Santander Bank [Member] | Letter 2 [Member]      
Property, Plant and Equipment [Line Items]      
Letters of credit issued amount 258,000    
Santander Bank [Member] | Letter 2 [Member] | August 2020 [Member]      
Property, Plant and Equipment [Line Items]      
Letters of Credit Outstanding, Amount     $ 323,000
Foreign Financial Institutions [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Cash and Cash Equivalents, at Carrying Value 100,000    
Restricted Cash and Security Agreements [Member] | Santander Bank [Member] | Letter of Credit [Member]      
Property, Plant and Equipment [Line Items]      
Deposits $ 154,000    
Restricted Cash and Security Agreements [Member] | Santander Bank [Member] | Letter 1 [Member]      
Property, Plant and Equipment [Line Items]      
Letters of Credit Outstanding, Amount     $ 645,000