Revenue Recognition - Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Revenues:
Revenues	$ 29,168	$ 31,296
Domestic
Revenues:
Revenues	23,815	25,659
International
Revenues:
Revenues	$ 5,353	$ 5,637