Property and Equipment (Tables)

12 Months Ended

Apr. 30, 2020

Property Plant And Equipment [Abstract]

Components of Property and Equipment

At April 30, 2020 and 2019, property and equipment consisted of (in thousands):

	2020			2019
Laboratory equipment	$	1,543		$	1,391
Office equipment		36			36
Furniture & fixtures		185			175
Leasehold improvements		1,647			1,707
Total property and equipment at cost		3,411			3,309
Less: Accumulated depreciation		(1,368	)		(896	)
Property and equipment, net	$	2,043		$	2,413