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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2020
Property Plant And Equipment [Abstract] |
Property, Plant and Equipment | (1) Property, Plant and Equipment Property, plant and equipment at December 31, 2020 and 2019 consist of the following:
|  | 2020 |  |  | 2019 |  |  | Estimated useful lives
Land |  | $ | 2,756 |  |  | $ | 2,706 |  |  |
Buildings and improvements |  |  | 19,786 |  |  |  | 18,640 |  |  | 10 to 3 0 years
Machinery and equipment |  |  | 124,199 |  |  |  | 116,757 |  |  | 3 to 15 years
Office furniture, fixtures and equipment |  |  | 7,403 |  |  |  | 6,228 |  |  | 3 to 10 years
Automotive equipment |  |  | 1,747 |  |  |  | 1,762 |  |  | 3 to 6 years
Construction in progress |  |  | 10,392 |  |  |  | 5,263 |  |  |
Total gross value |  |  | 166,283 |  |  |  | 151,356 |  |  |
Less accumulated depreciation |  |  | (100,901 | ) |  |  | (94,835 | ) |  |
Total net value |  | $ | 65,382 |  |  | $ | 56,521 |  |  |
For the years ended December 31, 2020, 2019, and 2018, the Company’s aggregate depreciation expense related to property, plant and equipment was $7,466, $6,504, and $8,142, respectively. For the years ended December 31, 2020, 2019, and 2018, the Company eliminated from assets and accumulated depreciation $1,400, $868 and $4,057 of fully depreciated assets, respectively.

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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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