INCOME TAXES - Components of Deferred Tax Liabilities and Assets (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Apr. 30, 2024
Deferred tax liabilities:
Depreciation and amortization	$ (106)	$ 0
Deferred compensation, restricted stock	(22)	(7)
Total deferred tax liabilities	(128)	(7)
Deferred tax assets:
Depreciation and amortization	0	98
Research and development	1,401	1,319
Accounts receivable allowance	22	13
Inventory and other allowances	151	97
Lease right-to-use	184	144
Compensation accruals	200	72
Inventory Capitalization	51	0
Jackpot reserves	195	183
Total deferred tax assets	2,204	1,926
Less valuation allowance	0	0
Net deferred tax asset	$ 2,076	$ 1,919