Property, Plant, and Equipment (Tables)

6 Months Ended

Jun. 30, 2020

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment consisted of the following (in thousands):

	Estimated Useful Life (in years)			As of
				June 30, 2020		December 31, 2019
Automobiles	5			$	23	$	23
Leasehold improvements	4	to	20	3,055		3,830
Computer software and equipment	2	to	7	26,083		26,816
Machinery and equipment	3	to	5	14,450		18,551
Furniture and fixtures	5	to	20	2,557		2,808
Work in progress(1)	N/A			6,994		2,747
Total cost				53,162		54,775
Accumulated depreciation				(30,916)		(32,020)
Total property, plant and equipment, net				$	22,246	$	22,755

⁽¹⁾ Work in progress includes information technology assets and production tooling.

Schedule Of Depreciation Expense

Depreciation expense was as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Depreciation expense	$	1,843	$	1,632	$	3,850	$	3,307