Property and Equipment

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Property and equipment consisted of the following at December 31 (in thousands):

	Estimated Useful Life	2018			2017
Land	N/A	$	2,900		$	2,900
Building and leasehold improvements	3-39 years	19,578			18,383
Production equipment	3-7 years	19,817			19,075
Computers, equipment and software	3-5 years	8,392			6,780
Furniture and office equipment	5-7 years	6,529			5,262
Vehicles	5 years	1,385			1,057
Website development costs	3 years	687			687
Capitalized internal-use software development costs	3 years	3,670			3,695
Construction-in-process	N/A	14,820			9,810
Total cost		77,778			67,649
Less: Accumulated depreciation		(39,885		)	(36,477		)
Property and equipment, net		$	37,893		$	31,172

Depreciation and amortization expense related to property and equipment was $4.9 million, $3.4 million and $2.5 million for the years ended December 31, 2018, 2017 and 2016, respectively, of which $1.4 million, $1.1 million and $0.7 million was included in cost of sales for the respective years.