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Property, Plant and Equipment | 12 Months Ended
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Dec. 28, 2019
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | Property, Plant and Equipment Property, plant and equipment consisted of the following at December 28, 2019 and December 29, 2018:
| Useful Life |  | 2019 |  | 2018
Equipment | 3-5 years |  | $ | 16,344,040 |  |  | $ | 16,824,384 |
Leasehold improvements | Life of the lease |  | 3,577,809 |  |  | 3,676,775 |
Furniture and fixtures | 3 years |  | 101,777 |  |  | 523,736 |
Equipment under construction |  |  | — |  |  | 436,806 |
|  |  | 20,023,626 |  |  | 21,461,701 |
Accumulated depreciation and amortization |  |  | (18,550,285 | ) |  | (18,862,859 | )
Property, plant and equipment, net |  |  | $ | 1,473,341 |  |  | $ | 2,598,842 |
Depreciation expense for the fiscal years 2019, 2018 and 2017 was approximately $0.8 million, $1.0 million and $0.9 million, respectively. During the fiscal year 2018, the Company recorded asset impairment charges of $2.5 million associated with equipment that either is not currently being utilized or will not be utilized for its remaining useful life and is not recoverable.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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