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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

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