Property and Equipment

3 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Property and Equipment

PROPERTY AND EQUIPMENT

The following table summarizes the Company’s major classes of property and equipment:

	December 31, 2022		September 30, 2022
	(in thousands)
Computers, software, office equipment and furniture	$	2,182	$	2,182
Land	2,996		2,996
Research equipment	43,739		38,283
Leasehold improvements	42,017		42,017
Construction in progress	90,215		56,373
	181,149		141,851
Less: Accumulated depreciation and amortization	(33,835)		(31,554)
Property and equipment, net	$	147,314	$	110,297

Depreciation and amortization expense for property and equipment for the three months ended December 31, 2022 and 2021 was $2.3 million and $2.1 million, respectively.

The increase in the construction in progress during the three months ended December 31, 2022 was mainly due to the continuing developments of manufacturing, laboratory and office facilities in Verona, Wisconsin as well as a new laboratory and office facility in San Diego, California. See Note 7.