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Note 13 - Property, Plant and Equipment, Net | 12 Months Ended
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Dec. 31, 2022
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | 13. Property, plant and equipment, net Property, plant and equipment, net consisted of the following as of December 31, 2022 and 2021 (in thousands):
|  | December 31, |
|  | 2022 |  |  | 2021 |
Cost: |  |  |  |  |  |  |  |
Land |  | $ | 22,261 |  |  | $ | 21,580 |
Land improvement |  |  | 3,054 |  |  |  | 3,054 |
Buildings and lease hold improvements |  |  | 98,490 |  |  |  | 104,660 |
Plant and equipment |  |  | 789,910 |  |  |  | 701,400 |
|  |  | 913,715 |  |  |  | 830,694 |
Less: accumulated depreciation |  |  | (451,399 | ) |  |  | (352,114 | )
Total |  | $ | 462,316 |  |  | $ | 478,580 |
The carrying amount of our property, plant and equipment recognized in respect of assets held under finance leases as of December 31, 2022 and 2021 and included in amounts above is as follows (in thousands):
|  | December 31, |
|  | 2022 |  |  | 2021 |
Cost: |  |  |  |  |  |  |  |
Buildings |  | $ | 18,623 |  |  | $ | 18,623 |
Plant and equipment |  |  | 1,275 |  |  |  | 1,275 |
|  |  | 19,898 |  |  |  | 19,898 |
Less: accumulated amortization |  |  | (9,085 | ) |  |  | (7,733 | )
Total |  | $ | 10,813 |  |  | $ | 12,165 |
Depreciation expense related to property, plant and equipment, including assets under finance leases, was $102.3 million, $95.8 million and $85.4 million for the years ended December 31, 2022, 2021 and 2020, respectively. No impairment expense related to property, plant and equipment was recognized for the years ended December 31, 2022 and 2021. We recognized impairment expense related to property, plant and equipment of $20.0 million for the year ended December 31, 2020, which is included in “Impairment expense” on our consolidated statement of operations. Refer to Note 4 “Fair value measurements” for further details. During the year ended December 31, 2022, a building classified as assets held for sale as of December 31, 2021, was sold for net proceeds of $6.3 million. Additionally, during the year ended December 31, 2022, a building with net carrying value of $2.2 million met the criteria to be classified as held for sale and was reclassified from property plant and equipment, net to assets held for sale on our consolidated balance sheet.

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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 https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://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 https://asc.fasb.org/extlink&oid=126982197&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 https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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