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PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT | 12 Months Ended
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Dec. 31, 2021
Property Plant And Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT | 6. PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT Property, plant and equipment Property, plant and equipment consisted of the following at December 31, 2021 and 2020 (in thousands):
|  | Estimated |  |  | December 31, |
|  | Useful Life |  |  | 2021 |  |  | 2020 |
|  | (in Years) |  |  |  |  |  |  |  |  |
Land |  |  | — |  |  | $ | 4,416 |  |  | $ | 4,216 |
Buildings |  | 10 to 25 |  |  |  | 25,742 |  |  |  | 25,044 |
Machinery and equipment |  | 3 to 15 |  |  |  | 65,625 |  |  |  | 62,498 |
Furniture and fixtures |  | 3 to 5 |  |  |  | 1,276 |  |  |  | 1,276 |
Transportation equipment |  | 2 to 5 |  |  |  | 2,363 |  |  |  | 2,104 |
Improvements |  |  | 15 |  |  |  | 23,404 |  |  |  | 23,652 |
Construction in progress |  |  | — |  |  |  | 705 |  |  |  | 3,092 |
Right-of-use asset (1) |  |  | 15 |  |  |  | 2,000 |  |  |  | — |
Total property, plant and equipment |  |  |  |  |  |  | 125,531 |  |  |  | 121,882 |
Accumulated depreciation |  |  |  |  |  |  | (92,665 | ) |  |  | (90,704 | )
Property, plant and equipment, net |  |  |  |  |  | $ | 32,866 |  |  | $ | 31,178 |
| (1) | Right-of-use asset – Represents the Harvey Facility. See Note 4 for further discussion of the Harvey Facility and related Harvey Option.
Depreciation expense for continuing operations for 2021 and 2020 was $4.1 million and $5.0 million, respectively. The decrease in depreciation expense for 2021 compared to 2020 was due to assets becoming fully depreciated. Leased Facilities and Equipment At December 31, 2021, our significant leases subject to long-term agreements were as follows:
| • | Corporate office in Houston, Texas consisting of approximately 17,000 square feet of office space. The lease expires in May 2025.
| • | Jennings Facility located near Jennings, Louisiana, consisting of approximately 180-acres on the west bank of the Mermentau River approximately 25 miles north of the U.S. Intracoastal Waterway. The lease expires in January 2025 with two ten-year renewal options that would extend the lease through January 2045. During the fourth quarter 2020, we closed our Jennings Facility and do not intend to exercise our renewal options.
| • | Lake Charles Facility located near Lake Charles, Louisiana, consisting of approximately 10-acres on the Calcasieu River approximately 17 miles from the GOM. The sublease expires in July 2023 with three, five-year renewal options (subject to sublessor renewals) that would extend the lease through July 2038. During the fourth quarter 2020, we closed our Lake Charles Facility and do not intend to exercise our renewal options.
At December 31, 2021, our lease asset, current lease liability and long-term lease liability were $0.9 million, $0.6 million and $1.4 million, respectively. As discussed above, we do not intend to exercise the renewal options for our Jennings Facility and Lake Charles Facility, and accordingly, our lease obligations for these facilities exclude the lease renewal options. Future minimum payments under leases having initial terms of more than twelve months are as follows (in thousands):
|  | Minimum Payments |
2022 |  | $ | 737 |
2023 |  |  | 653 |
2024 |  |  | 564 |
2025 |  |  | 219 |
2026 |  |  | - |
Total lease payments |  |  | 2,173 |
Less: interest |  |  | (218 | )
Present value of lease liabilities |  | $ | 1,955 |
Total lease expense for our leased facilities and equipment, which includes lease asset amortization expense and expense for leases with original terms that are twelve months or less, for 2021 and 2020, was $1.0 million and $0.9 million, respectively. Cash paid for leases for 2021 and 2020 was $1.5 million and $1.4 million, respectively. The discount rate used to determine the present value of our lease liabilities was based on the interest rate on our LC Facility adjusted for terms similar to that of our leased properties. At December 31, 2021, our weighted-average remaining lease term was approximately 3.1 years and the weighted-average discount rate used to derive our lease liability was 6.7%.

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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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