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Property and Equipment | 3 Months Ended
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Mar. 31, 2020
Property, Plant and Equipment [Abstract] |
Property and Equipment |
7. | PROPERTY AND EQUIPMENT
Property and equipment are summarized as follows:
|  | March 31, 2020 |  | December 31, 2019
Construction and transportation equipment |  | $ | 221,336 |  |  | $ | 217,945 |
Buildings and improvements |  | 15,711 |  |  | 14,641 |
Land |  | 3,891 |  |  | 3,891 |
Office equipment |  | 2,607 |  |  | 2,767 |
Total property and equipment |  | 243,545 |  |  | 239,244 |
Less accumulated depreciation |  | (125,727 | ) |  | (123,214 | )
Total property and equipment, net |  | $ | 117,818 |  |  | $ | 116,030 |
Depreciation Expense—Depreciation expense is primarily included within cost of revenues and was $5,448 and $3,702 for the three months ended March 31, 2020 and 2019, respectively.

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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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