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Equity Compensation Plans (Details - PSU Activity) - Performance Stock Units [Member]
shares in Thousands
3 Months Ended
Jul. 31, 2021
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding, beginning balance | shares 0
Weighted Average Exercise Price Outstanding, Beginning | $ / shares
PSUs granted | shares 312
Granted | $ / shares $ 26.03
PSUs vested | shares 0
Vested | $ / shares
PSUs forfeited | shares (30)
Forfeited | $ / shares $ 26.03
Outstanding, ending balance | shares 282
Weighted Average Exercise Price Outstanding, Ending | $ / shares $ 26.03