Red Cat Holdings, Inc. Annual report pursuant to Section 13 and 15(d)

Summary of restricted stock activity under the Plan (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2020
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockUnvestedAndOutstandingNumber-0]	1,083,675	687,500
[custom:SharebasedCompensationSharesRestrictedStockUnvestedAndOutstandingWeightedAverageExercisePrice-0]	$ 2.59	$ 2.69
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockGrantsInPeriodGross]	995,659	1,000,000
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockGrantsInPeriodWeightedAverageGrantDateFairValue]	$ 2.55	$ 2.69
[custom:SharebasedCompensationArrangementBySharebasedPaymentAwardRestrictedStockNumberVestedInPeriod]	(599,484)	(312,500)
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockNumberVestedInPeriodWeightedAverageGrantDateFairValue]	$ 2.64	$ 2.69
[custom:SharebasedCompensationArrangementBySharebasedPaymentAwardRestrictedStockNonvestedOptionsForfeitedNumberOfShares]
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice]