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Oil And Gas Properties (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Oil And Gas Properties [Abstract]
Oil and gas properties, at cost	$ 43,351	$ 36,002
Unevaluated properties	457	268
Accumulated depreciation, depletion and amortization	(19,108)	(16,064)
Oil and gas properties, net	24,700	20,206
Depletion expense	$ 3,000	$ 2,200	$ 1,900

X

- Definition

Oil And Gas Property Unevaluated Properties

+ References

No definition available.

+ Details

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- Details

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X

- Definition

The noncash expense charged against earnings to recognize the consumption of oil and gas reserves that are part of an entities' assets.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

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- Definition

Depletion of oil and gas property carried under the full cost method.

+ References

No definition available.

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X

- Definition

Oil and gas properties, gross, carried under the full cost method.

+ References

No definition available.

+ Details

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X

- Definition

Oil and gas properties, net of depletion, carried under the full cost method.

+ References

No definition available.

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