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Property, Plant and Equipment | 3 Months Ended
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Mar. 31, 2022
Property Plant And Equipment [Abstract] |
Property, Plant and Equipment | 4. Property, Plant and Equipment — Property, plant and equipment at March 31, 2022 and December 31, 2021 consists of the following:
|  | March 31, 2022 |  |  | December 31, 2021 |
Land |  | $ | 2,756 |  |  | $ | 2,756 |
Buildings and improvements |  |  | 19,814 |  |  |  | 19,844 |
Machinery and equipment |  |  | 132,440 |  |  |  | 132,159 |
Office furniture, fixtures and equipment |  |  | 10,189 |  |  |  | 10,094 |
Automotive equipment |  |  | 1,713 |  |  |  | 1,832 |
Construction in progress |  |  | 11,231 |  |  |  | 8,199 |
Total |  |  | 178,143 |  |  |  | 174,884 |
Less accumulated depreciation |  |  | (110,703 | ) |  |  | (108,773 | )
Property, plant and equipment, net |  | $ | 67,440 |  |  | $ | 66,111 |
The Company recognized depreciation expense related to property and equipment of $2,103 and $2,171 for the three months ended March 31, 2022 and 2021, respectively. Substantially all of the Company’s assets are pledged as collateral with its lender banks.

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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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