Consolidated Balance Sheets (Parentheticals) $ in Thousands |
Dec. 31, 2017
USD ($)
a
$ / shares
shares
|
Dec. 31, 2016
USD ($)
a
$ / shares
shares
|
---|---|---|
Property, plant and equipment, accumulated depreciation | $ | $ 463 | $ 165 |
Land (surface rights) (Acre) | 10,064.78 | 10,064.78 |
Certificates of Proprietary Interest, par value (in dollars per share) | $ / shares | $ 100 | $ 100 |
Certificates of Proprietary Interest, outstanding (in shares) | shares | 0 | 0 |
Sub-share Certificates in Certificates of Proprietary Interest, par value (in dollars per share) | $ / shares | $ 0.0333 | $ 0.0333 |
Sub-share Certificates in Certificates of Proprietary Interest, outstanding (in shares) | shares | 7,821,599 | 7,927,314 |
Land Surface Rights [Member] | ||
Land (surface rights) (Acre) | 877,633 | 877,488 |
Royalty Interests in Acres 1_16 [Member] | ||
Nonparticipating perpetual royalty interest in acres (Acre) | 373,777 | 373,777 |
Royalty Interests in Acres 1_128 [Member] | ||
Nonparticipating perpetual royalty interest in acres (Acre) | 85,414 | 85,414 |
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- Definition Represents the number of acres related to non-participating perpetual royalty interests. No definition available.
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- Definition Surface rights in acre as part of land owned. No definition available.
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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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