Equity - Schedule of Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Equity [Abstract]
Basic (loss)/earnings, Net income (loss)	$ (2,863)	$ 3,766	$ (8,188)	$ 11,806
Diluted (loss)/ earnings, Net income (loss)	$ (2,863)	$ 3,766	$ (8,188)	$ 11,806
Basic (loss)/earnings, shares	13,331	14,054	13,413	14,091
Effect of dilutive stock awards, shares		151		241
Diluted (loss)/earnings, shares	13,331	14,205	13,413	14,332
Basic (loss)/earnings, per shares	$ (0.21)	$ 0.27	$ (0.61)	$ 0.84
Effect of dilutive stock awards, per shares				(0.02)
Diluted (loss)/earnings, per shares	$ (0.21)	$ 0.27	$ (0.61)	$ 0.82