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Fair Value of Other Securities (Details) (Fair Value, Measurements, Recurring [Member], USD $)
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Mar. 31, 2013
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Dec. 31, 2012
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Nov. 30, 2012
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|---|---|---|---|
| Assets: | |||
| Trading securities | $ 0 | $ 4,318,398 | $ 55,219,411 |
| Other equity securities | 21,895,854 | 19,707,126 | 19,866,621 |
| Total Assets | 21,895,854 | 24,025,524 | 75,086,032 |
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Level 1 [Member]
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| Assets: | |||
| Trading securities | 0 | 4,318,398 | 27,480,191 |
| Other equity securities | 0 | 0 | 0 |
| Total Assets | 0 | 4,318,398 | 27,480,191 |
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Level 2 [Member]
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| Assets: | |||
| Trading securities | 0 | 0 | 27,739,220 |
| Other equity securities | 0 | 0 | 0 |
| Total Assets | 0 | 0 | 27,739,220 |
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Level 3 [Member]
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| Assets: | |||
| Trading securities | 0 | 0 | 0 |
| Other equity securities | 21,895,854 | 19,707,126 | 19,866,621 |
| Total Assets | $ 21,895,854 | $ 19,707,126 | $ 19,866,621 |
| X | ||||||||||
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- Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This element represents the fair value of assets categorized as other which are not in and of themselves material enough to require separate disclosure. No definition available.
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| X | ||||||||||
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- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents marketable and other securities categorized as trading securities as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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