Property and Equipment

9 Months Ended

Sep. 30, 2021

Property, Plant and Equipment [Abstract]

Property and Equipment

4. Property and Equipment

Property and equipment consist of the following (in thousands):

	September 30, 2021			December 31, 2020
Equipment	$	5,351		$	5,356
Software		364			180
Leasehold improvements		600			896
Furniture and fixtures		22			629
Total property and equipment–at cost		6,337			7,061
Less: Accumulated depreciation		(4,902	)		(5,935	)
Property and equipment, net	$	1,435		$	1,126

Total depreciation expense for three months ended September 30, 2021 and 2020 was $0.1 million and $0.4 million, respectively. Total depreciation expense for nine months ended September 30, 2021 and 2020 was $0.4 million and $1.3 million, respectively.