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v3.22.1

Propert, Plant and Equipment, net | 12 Months Ended
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Dec. 31, 2021
Allowance for Doubtful Accounts |
4. Propert, Plant And Equipment, Net | 4. Property, Plant and Equipment, net Property, plant and equipment, net include the following:
|  | December 31, |
|  | 2021 |  |  | 2020 |
Leasehold improvements |  | $ | 586 |  |  | $ | 727 |
Machinery and equipment |  |  | 14,120 |  |  |  | 11,971 |
Gross Property, Plant, and Equipment |  |  | 14,706 |  |  |  | 12,698 |
Less accumulated depreciation and amortization |  |  | (10,150 | ) |  |  | (9,132 | )
Property, plant and equipment, net |  | $ | 4,556 |  |  | $ | 3,566 |
Depreciation and amortization expense relating to property, plant and equipment for the years ended December 31, 2021 and 2020 was approximately $1,394 and $1,344, respectively. During the year ended 31, 2020, the company removed from its records approximately $1,400 of fully depreciated machinery and equipment.

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- Definition Disclosure of accounting policy for assessing and recognizing impairments of its property, plant and equipment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 + Details
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