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v3.19.1

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Operating Expenses: |  |  |  |
Mineral property expenses | $ (634) | $ (782) | $ (3,538) | $ (4,584)
General and administrative expenses | (1,836) | (1,805) | (7,357) | (6,614)
Acquisition costs |  | (755) | (600) | (1,003)
Accretion of asset retirement obligations | (126) | (134) | (993) | (1,039)
Depreciation and amortization | (23) | (34) | (116) | (142)
Total operating expenses | (2,619) | (3,510) | (36,049) | (24,818)
Non-Operating Income/(Expenses): |  |  |  |
Loss on sale of marketable securities | (720) | (93) | (484) |
Interest income | 166 | 174 | 735 | 614
Other income (expense) | (1) | 10 | 10 | 28
Total other (expense)/income | (555) | 91 | 365 | 5,530
Net Loss | (3,174) | (3,419) | (35,684) | (19,288)
Other Comprehensive Income (Loss) |  |  |  |
Unrealized fair value decrease on marketable securities |  | (937) | (861) | 287
Transfer to realized loss upon sale of available-for-sale securities | 90 |  | 484 |
Comprehensive Loss | $ (3,084) | $ (4,356) | $ (36,061) | $ (19,001)
BASIC AND DILUTED LOSS PER SHARE | $ (2.15) | $ (6.11) | $ (0.77) | $ (0.78)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING | 1,478,233,000 | 559,357,000 | 46,384,357 | 24,736,955

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109260490&loc=d3e1337-109256 + Details
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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
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