Net Income (Loss) Per Common Share (Details - Reconciliation of per share) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Numerator
Net income (loss), basic	$ (6,006)	$ (247)	$ (17,649)	$ 594
Add interest expense on 2026 Notes, net of tax	0	(58)	0	0
Net income (loss), diluted	$ (6,006)	$ (305)	$ (17,649)	$ 594
Denominator
Weighted average basic common shares outstanding	63,321	62,388	63,103	62,166
Effect of dilutive securities:
Stock options	0	0	0	1,239
RSUs, PSUs and ESPP	0	0	0	229
2026 Notes	0	6,776	0	0
Weighted average dilutive common shares outstanding	63,321	69,164	63,103	63,634
Net income (loss) per share:
Basic	$ (0.09)	$ (0.00)	$ (0.28)	$ 0.01
Diluted	$ (0.09)	$ (0.00)	$ (0.28)	$ 0.01