Balance Sheets (Unaudited) (Parentheticals) (USD $) |
9 Months Ended | 12 Months Ended |
|---|---|---|
|
Sep. 30, 2011
A
|
Dec. 31, 2010
A
|
|
| Land in Acres | 10,793 | 10,793 |
| Surface rights in acres | 936,168 | 949,423 |
| Number of Lots | 318 | 318 |
| Certificates of Proprietary Interest, par value (in Dollars per share) | 100 | 100 |
| Certificates of Proprietary Interest, outstanding (in Shares) | 0 | 0 |
| Sub-share Certificates in Certificates of Proprietary Interest, par value (in Dollars per share) | 0.03 | 0.03 |
| Sub-share Certificates in Certificates of Proprietary Interest, outstanding (in Shares) | 9,287,324 | 9,548,444 |
Royalty Interests In Acres 1_16 [Member] |
Ìý | Ìý |
| nonparticipating perpetual royalty interest in acres | 386,988 | 386,988 |
Royalty Interests In Acres 1_128 [Member] |
Ìý | Ìý |
| nonparticipating perpetual royalty interest in acres | 85,414 | 85,414 |
| X | ||||||||||
- Definition Number of acres
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- Definition Represents the number of acres related to non-participating perpetual royalty interests.
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| X | ||||||||||
- Definition Number of lots
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| X | ||||||||||
- Definition Surface rights in acre as part of land owned
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| X | ||||||||||
- Definition Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- 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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