Summary of Significant Accounting Policies (Details Narrative) - USD ($)	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Product Information [Line Items]
Restricted cash	$ 0	$ 400,000
Revenue recognized for which the contract liability was recorded in the prior year	24,900,000	40,800,000
Change in revenue due to change in estimate	3,700,000	3,000,000
Allowance for doubtful accounts	2,300,000	500,000
Capitalized Interest Costs, Including Allowance for Funds Used During Construction	1,100,000	800,000
Depreciation and amortization expense	11,100,000	7,200,000	$ 4,500,000
Impairment of long-lived assets	0	0
Impairment loss		100,000
Cash equivalents	27,600,000	28,700,000
Investment in equity securities	4,400,000	0
Advertising costs	800,000	$ 700,000	$ 600,000
Deferred income taxes	$ 113,800,000
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer [Member] | UNITED STATES
Product Information [Line Items]
Concentration risk percentage	97.00%	100.00%	100.00%