Property, plant and equipment

12 Months Ended

Dec. 31, 2023

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,	2023		2022		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		3,467		3,396	25-39 years
- Cylinders		13,220		13,315	15-30 years
- Equipment		29,397		27,258	3-10 years
- Equipment under capital lease		315		315	5-7 years
- Vehicles		1,790		1,773	3-5 years
- Lab and computer equipment, software		3,233		3,103	2-8 years
- Furniture & fixtures		933		840	5-10 years
- Leasehold improvements		865		852	3-5 years
- Construction-in-Progress		2,844		3,533
Subtotal		59,084		57,405
Less: Accumulated depreciation		(39,709)		(36,837)
Total	$	19,375	$	20,568

Depreciation expense for the years ended December 31, 2023, 2022 and 2021 was $3.0 million, $3.2 million and $3.4 million, respectively, of which $2.0 million, $2.0 million and $1.9 million, respectively, were included as cost of sales in the Company’s Consolidated Income Statements.