Property and equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Components of property and equipment

Estimated useful lives of our assets are as follows:

	Useful Life	December 31, 2019		December 31, 2018
Furniture and fixtures	10	$	8	$	520
Automobiles and trucks	5	3,071		3,548
Machinery and equipment	10 — 20 years	3,543		21,482
Office and computer equipment	5 — 10 years	3,363		6,183
Building and improvements	10 — 40 years	693		18,693
		10,678		50,426
Less accumulated depreciation and amortization		3,459		12,449
		7,219		37,977
Land		1,998		5,119
		$	9,217	$	43,096

Components of assets held-for-sale

Our held for sale assets as of December 31, 2019 consisted of:

	Carrying value at
	December 31, 2019
Equipment	$	1,572
Vehicles	488
Real estate	800
Total held for sale	$	2,860