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Basis of Presentation (Description of Operations) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
1 Months Ended | 6 Months Ended | 12 Months Ended | 14 Months Ended | |
|---|---|---|---|---|---|
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Sep. 30, 2012
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Dec. 31, 2012
segment
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Dec. 31, 2011
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Jun. 30, 2012
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Dec. 31, 2012
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| Presentation and Significant Accounting Policies Information [Line Items] | |||||
| Number of Reportable Segments | 2 | ||||
| Treasury Stock, Shares, Acquired | 149,539 | 0 | |||
| Payments for Repurchase of Common Stock | $ 2,000 | $ 137 | $ 0 | $ 137 | |
| Treasury Stock Acquired, Average Cost Per Share | $ 0.916 | ||||
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Nautilus Poplar, LLC (NP)
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| Presentation and Significant Accounting Policies Information [Line Items] | |||||
| Subsidiary, Ownership Percentage | 100.00% | 100.00% | |||
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Magellan Petroleum Australia Limited (MPAL)
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|||||
| Presentation and Significant Accounting Policies Information [Line Items] | |||||
| Subsidiary, Ownership Percentage | 100.00% | 100.00% | |||
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Subsidiary, Ownership Percentage No definition available.
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| X | ||||||||||
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- Definition
Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. No definition available.
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| X | ||||||||||
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- Definition
The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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