Property and Equipment and Assets Held For Sale (Tables)

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of 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, 2019			December 31, 2018
Equipment (useful life 3 to 15 years)	$	1,491		$	1,511
Tooling (useful life 2 to 5 years)	371			371
Vehicles (useful life 5 years)	47			47
Furniture and fixtures (useful life 5 years)	137			137
Computer software (useful life 3 years)	1,043			1,043
Leasehold improvements (the shorter of useful life or lease life)	211			211
Finance lease right-of-use asset	13			—
Projects in progress	61			55
Property and equipment at cost	3,374			3,375
Less: accumulated depreciation	(2,864		)	(2,765		)
Property and equipment, net	$	510		$	610