Property and Equipment

3 Months Ended

Mar. 31, 2021

Property, Plant and Equipment [Abstract]

Property and Equipment

PROPERTY AND EQUIPMENT

Property and equipment are stated at cost and depreciated using the straight-line method over the estimated useful lives of the related assets and consist of the following (in thousands):

	March 31, 2021		December 31, 2020
Equipment (useful life 3 to 15 years)	$	1,281	$	1,281
Tooling (useful life 2 to 5 years)	240		240
Vehicles (useful life 5 years)	80		47
Furniture and fixtures (useful life 5 years)	137		137
Computer software (useful life 3 years)	1,121		1,057
Leasehold improvements (the shorter of useful life or lease life)	169		169
Finance lease right-of-use asset	13		13
Projects in progress	152		140
Property and equipment at cost	3,193		3,084
Less: accumulated depreciation	(2,711)		(2,664)
Property and equipment, net	$	482	$	420

Depreciation expense was $47 thousand and $46 thousand for the three months ended March 31, 2021 and 2020, respectively.