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DISCONTINUED OPERATIONS (Details 2) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Operating results for apartment complex: |  |  |
Rental revenue |  |  |
Operating expenses |  |  |
Net earnings for apartment complex |  |  |
Operating expenses of mining segment: |  |  |
Water treatment plant | (254) | (1,737) | (1,875)
Mine property holding costs | (2,194) | (1,133) | (1,110)
Impairment loss on discontinued operations |  | (22,620) |
Depreciation of mine equipment |  | (122) | (123)
Total expenses for mining segment | (2,448) | (25,612) | (3,108)
Total results for discontinued operations | $ (2,448) | $ (25,612) | $ (3,108)

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- Definition Income before income taxes for oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
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- Definition Sales revenue to unaffiliated enterprises from oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62246-109447 + Details
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- Definition Amount after tax of gain (loss) not previously recognized resulting from impairment loss from discontinued operation. + References No definition available. + Details
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- Definition Represents the Mine property holding costs. + References No definition available. + Details
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- Definition Depreciation, depletion and amortization, and valuation provisions (impairments) related to oil and gas producing activities. + References No definition available. + Details
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- Definition The amount of expenses related to oil and gas producing activities. + References No definition available. + Details
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- Definition Represents the rental revenue. + References No definition available. + Details
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- Definition Total revenues from oil and gas producing activities. + References No definition available. + Details
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- Definition Refers to water treatment plant cost during the period. + References No definition available. + Details
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