ACCOUNTS RECEIVABLE, NET, CONTRACT ASSET AND CONTRACT LIABILITY - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 5,867	$ 5,776
Allowance for doubtful accounts	83	47
Contract assets	2,993	3,812
Decrease in contract assets	819	(1,919)
Decrease in contract liabilities	392	109
Revenue recognized	$ 4,523	$ 4,323