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Schedule of Accounts Receivable, Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Apr. 30, 2024	Apr. 30, 2023
Accounts Receivable Contract Assets And Contract Liabilities
Accounts receivable	$ 963	$ 796	$ 745
Contract assets	477	18	152
Contract liabilities	$ 445	$ 302	$ 1,378

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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