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Property and Equipment | 12 Months Ended
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Dec. 31, 2018
Property, Plant and Equipment [Abstract] |
Property and Equipment |
7. | Property and Equipment
Property and equipment are summarized as follows (amounts in thousands):
| As of December 31,
| 2018 |  | 2017
Construction equipment | $ | 126,082 |  |  | $ | 118,868 |
Transportation equipment | 18,548 |  |  | 17,511 |
Buildings | 9,770 |  |  | 9,577 |
Office equipment | 2,711 |  |  | 3,339 |
Leasehold Improvement | 914 |  |  | 914 |
Construction in progress | 388 |  |  | 258 |
Land | 2,720 |  |  | 2,348 |
Water rights | — |  |  | 200 |
| 161,133 |  |  | 153,015 |
Less accumulated depreciation | (109,134 | ) |  | (98,609 | )
| $ | 51,999 |  |  | $ | 54,406 |
Assets Sold During the year ended December 31, 2017, we sold an office, equipment shop and yard facility, located in Texas. The property had a net book value of $4.1 million, and we received $3.0 million, after selling costs, resulting in a loss of $1.1 million in “Other operating expense, net”.

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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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