Property and Equipment

9 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Property and equipment consists of the following, in thousands of dollars:

	September 30, 2019			December 31, 2018
	(unaudited)
Lab equipment and furniture	$	9,526		$	8,995
Leasehold improvements	8,884			2,731
Software	2,225			2,181
Computer equipment	1,334			1,313
Construction-in-progress	338			94
	22,307			15,314
Less accumulated depreciation and amortization	(12,330		)	(11,219		)
Total	$	9,977		$	4,095

Depreciation and amortization expense on property and equipment was approximately $0.4 million and $1.1 million for the three and nine months ended September 30, 2019, respectively, modestly lower than the approximately $0.6 million and $1.5 million for the three and nine months ended September 30, 2018, respectively.

The Company performs its annual impairment assessment of its property and equipment in the fourth quarter, or earlier if impairment indicators exist. As of September 30, 2019, there were no identified indicators of impairment.