Property, plant and equipment

12 Months Ended

Dec. 31, 2019

Property, plant and equipment

Property, plant and equipment

Note 5 - Property, plant and equipment

Elements of property, plant and equipment are as follows:

					Estimated
December 31,	2019		2018		Lives
(in thousands)
Property, plant and equipment
- Land	$	1,255	$	1,255
- Land improvements		319		319	6-10 years
- Buildings		1,446		1,446	25-39 years
- Building improvements		3,045		3,045	25-39 years
- Cylinders		13,273		13,369	15-30 years
- Equipment		24,953		24,078	3-10 years
- Equipment under capital lease		315		315	5-7 years
- Vehicles		1,574		1,535	3-5 years
- Lab and computer equipment, software		3,077		3,090	2-8 years
- Furniture & fixtures		679		684	5-10 years
- Leasehold improvements		842		873	3-5 years
- Equipment under construction		73		464
Subtotal		50,851		50,473
Accumulated depreciation		27,177		23,078
Total	$	23,674	$	27,395

Depreciation expense for the years ended December 31, 2019 and 2018 was $4.2 million and $4.2 million, respectively, of which $2.7 million and $2.4 million, respectively, were included as cost of sales in the Company’s Consolidated Statements of Operations.