Property and Equipment and Assets Held For Sale (Tables)

9 Months Ended

Sep. 30, 2018

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):

	September 30, 2018			December 31, 2017
Equipment (useful life 3 to 15 years)	$	1,531		$	1,557
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)	210			201
Projects in progress	58			55
Property and equipment at cost	3,397			3,411
Less: accumulated depreciation	(2,684		)	(2,314		)
Property and equipment, net	$	713		$	1,097