Equity Compensation Plans (Details - Share based compensation) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation	$ 10,978	$ 7,380	$ 3,854
Cost of Sales [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation	3,876	2,540	1,404
Selling General And Administrative [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation	$ 7,102	$ 4,840	$ 2,450