Property and Equipment and Assets Held For Sale

3 Months Ended

Mar. 31, 2017

Property, Plant and Equipment [Abstract]

Property and Equipment and Assets Held For Sale

PROPERTY AND EQUIPMENT AND ASSETS HELD FOR SALE

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, 2017			December 31, 2016
Equipment (useful life 3 to 15 years)	$	1,825		$	2,231
Tooling (useful life 2 to 5 years)	866			863
Vehicles (useful life 5 years)	86			39
Furniture and fixtures (useful life 5 years)	170			170
Computer software (useful life 3 years)	977			977
Leasehold improvements (the shorter of useful life or lease life)	262			256
Projects in progress	112			154
Property and equipment at cost	4,298			4,690
Less: accumulated depreciation	(2,537		)	(2,365		)
Property and equipment, net	$	1,761		$	2,325

Depreciation expense was $177 thousand and $151 thousand for the three months ended March 31, 2017 and 2016, respectively.

As of December 31, 2016, we recorded an impairment charge related to certain equipment that we were no longer using and adjusted the carrying value of this equipment to its estimated net realizable value of $410 thousand. During the first quarter of 2017, we began to seek out a buyer for this equipment, and as such, we reclassified the amount on our Condensed Consolidated Balance Sheets under the caption, “Assets held for sale” as of March 31, 2017.