Property and Equipment

12 Months Ended

Apr. 30, 2021

Property Plant And Equipment [Abstract]

Property and Equipment

Note 4. Property and Equipment

At April 30, 2021 and 2020, property and equipment consisted of (in thousands):

	2021			2020
Laboratory equipment	$	1,748		$	1,543
Office equipment		45			36
Furniture & fixtures		215			185
Leasehold improvements		1,872			1,647
Total property and equipment at cost		3,880			3,411
Less: Accumulated depreciation		(2,089	)		(1,368	)
Property and equipment, net	$	1,791		$	2,043

For the years ended April 30, 2021, 2020 and 2019, depreciation expense was $537,000, $512,000 and $378,000, respectively.