Property, Plant, and Equipment (Tables)

9 Months Ended

Sep. 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
				September 30, 2020		December 31, 2019
Automobiles	5			$	23	$	23
Leasehold improvements	4	to	20	3,056		3,830
Computer software and equipment	2	to	7	32,229		26,816
Machinery and equipment	3	to	5	15,170		18,551
Furniture and fixtures	5	to	20	2,586		2,808
Work in progress(1)	N/A			1,854		2,747
Total cost				54,918		54,775
Accumulated depreciation				(31,750)		(32,020)
Total property, plant and equipment, net				$	23,168	$	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 September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Depreciation expense	$	1,815	$	2,046	$	5,665	$	5,353