Equity Compensation Plans (Details - PSU Activity) - Performance Stock Units [Member] shares in Thousands	3 Months Ended
	Jul. 31, 2023 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Outstanding, beginning balance | shares	522
Weighted average grant date fair value, beginning | $ / shares	$ 19.70
PSUs, granted | shares	613
PSUs weighted average grant date fair value, granted | $ / shares	$ 13.92
PSUs, vested | shares	0
PSUs weighted average grant date fair value, vested | $ / shares	$ 0
PSUs, forfeited | shares	0
PSUs weighted average grant date fair value, forfeited | $ / shares	$ 0
Outstanding, ending balance | shares	1,135
Weighted average grant date fair value, ending | $ / shares	$ 16.58