Prepaid Expenses and Other Current Assets (Tables)

12 Months Ended

Apr. 30, 2022

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

At April 30, 2022 and 2021, prepaid expenses and other current assets consisted of (in thousands):

	2022		2021
Prepaid clinical expenses	$	8,404	$	2,155
Other prepaid expenses		2,234		1,461
Interest and other receivables		888		940
VAT receivable		1,821		361
Total prepaid expenses and other current assets	$	13,347	$	4,917