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Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2018
Property Plant And Equipment [Abstract] |
Schedule of Property, Plant and Equipment | Property, plant and equipment consisted of the following at December 31, 2018 and 2017:
Category |  |  | Estimated Useful Lives (years) |  |  |  | 2018 |  |  |  | 2017 |
|  |  |  |  |  | (in thousands) |
Buildings and improvements |  |  | 15 – 25 |  |  | $ | 146 |  |  | $ | 54 |
Office equipment and furniture |  |  | 2 – 7 |  |  |  | 133 |  |  |  | 112 |
Automobiles and trucks |  |  | 2 – 5 |  |  |  | 28 |  |  |  | 33 |
Machinery and shop equipment |  |  | 2 – 10 |  |  |  | 476 |  |  |  | 568 |
Total |  |  |  |  |  | $ | 783 |  |  | $ | 767 |
Less: accumulated depreciation and amortization |  |  |  |  |  |  | (231 | ) |  |  | (169 | )
Total |  |  |  |  |  | $ | 552 |  |  | $ | 598 |
Schedule of Depreciation Expense Recognized | Depreciation expense recognized in the year ended December 31, 2018 and 2017 is as follows:
|  |  |  |  |  |  | 2018 |  |  |  | 2017 |
Continuing Operations: |  |  |  |  |  | (in thousands) |
Cost of revenue |  |  |  |  |  | $ | 146 |  |  | $ | 84 |
General and administrative expenses |  |  |  |  |  |  | 133 |  |  |  | 113 |
Discontinued operations |  |  |  |  |  |  | 238 |  |  |  | 644 |
|  |  |  |  |  | $ | 517 |  |  | $ | 841 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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