Equity - Schedule of Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Equity [Abstract]
Basic earnings, Net income	$ 3,457	$ 1,789
Diluted earnings, Net income	$ 3,457	$ 1,789
Basic earnings	14,083	13,975
Effect of dilutive stock awards, shares	218
Diluted earnings	14,301	13,975
Basic earnings, per shares	$ 0.25	$ 0.13
Effect of dilutive stock awards, per shares	(0.01)
Diluted earnings, per shares	$ 0.24	$ 0.13