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Property, Plant and Equipment (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Property, Plant and Equipment |  |
Gross property, plant, and equipment | $ 178,925,000 | $ 176,612,000
Less: accumulated depreciation and amortization, including accumulated amortization of finance leases | (103,551,000) | (101,033,000)
Property, plant, and equipment - net | 75,374,000 | 75,579,000
Depreciation | 9,452,000 | 9,949,000
Impairments of property, plant, and equipment | 0 | 0
Land |  |
Property, Plant and Equipment |  |
Gross property, plant, and equipment | 5,864,000 | 5,869,000
Improvements to land and leaseholds |  |
Property, Plant and Equipment |  |
Gross property, plant, and equipment | 19,566,000 | 19,404,000
Buildings |  |
Property, Plant and Equipment |  |
Gross property, plant, and equipment | 31,703,000 | 31,447,000
Machinery and equipment, including equipment under finance leases |  |
Property, Plant and Equipment |  |
Gross property, plant, and equipment | 117,377,000 | 118,190,000
Construction in progress |  |
Property, Plant and Equipment |  |
Gross property, plant, and equipment | $ 4,415,000 | $ 1,702,000

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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-2 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482130/360-10-45-4 + Details
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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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