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Other Property And Equipment | 12 Months Ended
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Dec. 31, 2017
Other Property And Equipment [Abstract] |
Other Property And Equipment | 6. Other Property and Equipment ﻿ Other property and equipment consisted of the following as of December 31, 2017: (in thousands) ﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Depreciable |  |  |  |  | Accumulated |  | Net Book
﻿Type |  | Life |  | Gross Cost |  | Depreciation |  | Value
﻿Machinery and equipment |  | 5-7 yrs |  | $ | 20 |  | $ | 20 |  | $ | —
﻿Vehicles |  | 2-5 yrs |  |  | 318 |  |  | 183 |  |  | 135
﻿Other |  | 5 yrs |  |  | 63 |  |  | 63 |  |  | —
﻿Total |  |  |  | $ | 401 |  | $ | 266 |  | $ | 135
﻿ Other property and equipment consisted of the following as of December 31, 2016: (in thousands) ﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Depreciable |  |  |  |  | Accumulated |  | Net Book
﻿Type |  | Life |  | Gross Cost |  | Depreciation |  | Value
﻿Machinery and equipment |  | 5-7 yrs |  | $ | 20 |  | $ | 20 |  | $ | —
﻿Vehicles |  | 2-5 yrs |  |  | 339 |  |  | 199 |  |  | 140
﻿Other |  | 5 yrs |  |  | 63 |  |  | 63 |  |  | —
﻿Total |  |  |  | $ | 422 |  | $ | 282 |  | $ | 140
﻿ The Company uses the straight-line method of depreciation for other property and equipment. During each of the years ended December 31, 2017, 2016, and 2015, the Company recorded depreciation expense of $66,000, $69,000, and $77,000, 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -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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