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Note 17 – Share Based Awards (Details Narrative) - USD ($) | 12 Months Ended
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Apr. 30, 2022 | Apr. 30, 2021
Share-Based Payment Arrangement [Abstract] |  |
[custom:NumberOfSharesIssuableInConnectionWithAwardsUnderPlanMaximum] | 8,750,000 |
[custom:UnrecognizedStockBasedCompensationExpenseRelatedToUnvestedStockOptions] | $ 3,380,467 | $ 645,264
[custom:StockCompensationExpensePertainingToOptions] | 1,447,115 | 2,547,591
[custom:StockCompensationExpensePertainingToRestrictedStockUnits] | $ 1,844,520 | $ 840,625

X
- References No definition available. + Details
Name: | RCAT_NumberOfSharesIssuableInConnectionWithAwardsUnderPlanMaximum
Namespace Prefix: | RCAT_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | RCAT_StockCompensationExpensePertainingToOptions
Namespace Prefix: | RCAT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | RCAT_StockCompensationExpensePertainingToRestrictedStockUnits
Namespace Prefix: | RCAT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | RCAT_UnrecognizedStockBasedCompensationExpenseRelatedToUnvestedStockOptions
Namespace Prefix: | RCAT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration