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v3.20.4

Property, plant and equipment | 12 Months Ended
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Dec. 31, 2020
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, |  | 2020 |  | 2019 |  | 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 |  |  | 3,072 |  |  | 3,045 |  | 25-39 years
- Cylinders |  |  | 13,624 |  |  | 13,273 |  | 15-30 years
- Equipment |  |  | 25,138 |  |  | 24,953 |  | 3-10 years
- Equipment under capital lease |  |  | 315 |  |  | 315 |  | 5-7 years
- Vehicles |  |  | 1,537 |  |  | 1,574 |  | 3-5 years
- Lab and computer equipment, software |  |  | 3,103 |  |  | 3,077 |  | 2-8 years
- Furniture & fixtures |  |  | 679 |  |  | 679 |  | 5-10 years
- Leasehold improvements |  |  | 852 |  |  | 842 |  | 3-5 years
- Equipment under construction |  |  | 944 |  |  | 73 |  |
Subtotal |  |  | 52,284 |  |  | 50,851 |  |
Accumulated depreciation |  |  | 30,374 |  |  | 27,177 |  |
Total |  | $ | 21,910 |  | $ | 23,674 |  |
Depreciation expense for the years ended December 31, 2020 and 2019 was $3.2 million and $4.2 million, respectively, of which $1.7 million and $2.7 million, respectively, were included as cost of sales in the Company’s Consolidated Statements of Operations.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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