SUBSEQUENT EVENT (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	0 Months Ended
Mar. 31, 2013 Combined entities Pro forma Mcfe	Apr. 30, 2013 Subsequent event Crimson Contango Scenario forecast
Subsequent event
Number of shares of common stock to be received for each share owned as consideration		0.08288
Ownership percentage in post-merger entity		20.30%
Approximate net daily production (in Mmcfe)	101,000
Oil and natural gas liquids production as a percentage of net daily production	31.00%
Estimated total proved reserves (in Bcfe)	312,000,000
Oil and natural gas liquids as a percentage of estimated total proved reserves	31.00%
PV-10 of the estimated proved reserves	$ 932.5
Share price (in dollars per share)		$ 3.19
Premium on share price as a percentage of most recent closing price of common stock		8.00%
Aggregate consideration		390
Number of shares of common stock assumed to be issued		3,900,000
Long-term debt assumed		$ 244

Represents the aggregate estimated proved reserves, measured in energy equivalents.

No definition available.

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- Definition

Represents the number of shares issued by the acquiring entity for each share of the acquiree's stock.

+ References

No definition available.

+ Details

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- Definition

Represents the net daily production of oil and gas reserves.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of net daily production of oil and gas reserves represented by oil and natural gas liquids.

+ References

No definition available.

+ Details

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- Definition

Represents for the acquired entity, the premium on the price of a single share of a number of saleable stocks of the entity, expressed as a percentage of the closing stock price.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Represents the present value of the estimated proved reserves.

+ References

No definition available.

+ Details

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- Definition

Represents the oil and natural gas liquids, expressed as a percentage of aggregate estimated proved reserves.

+ References

No definition available.

+ Details

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- Definition

Fair Value of the liabilities incurred by the acquirer to former owners of the acquiree, including the fair value of any contingent consideration. If liabilities transferred as consideration remain within the combined entity after the business combination (for example, because the assets or liabilities were transferred to the acquiree rather than to its former owners), and the acquirer therefore retains control of them; in that situation, the acquirer measures those liabilities at their carrying amounts immediately before the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6405-128476

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph f(3)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 39, 40, 41

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

+ Details

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- Definition

For an acquired entity, price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Details

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