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Geographic Information (Details) - USD ($)	12 Months Ended
Geographic Information (Details) - USD ($)	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Product Information
Fixed assets deployed	$ 50,704,000	$ 46,602,000
UxS \| UGV
Product Information
Fixed assets deployed	5,033,000	2,912,000
UxS \| MUAS
Product Information
Deploys in-service assets	1,486,000	0
Sales Revenue \| Country of Ukraine
Product Information
Revenues	$ 149,600,000	$ 274,136,000	$ 100,095,000
Customer concentration \| Sales Revenue \| Non-U.S. customers
Product Information
Percentage of revenue	52.00%	62.00%	53.00%
Customer concentration \| Sales Revenue \| Country of Ukraine
Product Information
Percentage of revenue	18.00%	38.00%	19.00%