Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Apr. 30, 2022
Payables and Accruals [Abstract]
Accrued sales allowances	$ 2,798	$ 2,392
Accrued freight	2,266	1,253
Accrued professional fees	1,206	951
Accrued warranty	905	786
Accrued commissions	865	1,175
Accrued taxes other than income	740	718
Accrued employee benefits	502	312
Accrued other	352	266
Total accrued expenses	$ 9,634	$ 7,853