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Financial Instruments (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Financial Instruments (Textual) [Abstract]
Monetized crude oil swaps and collars	$ 38,000	$ 4,295,000	$ 379,000	$ 4,431,000
Net proceeds from derivative instruments			$ 1,030,000	$ 3,400,000

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- Definition

Net proceeds from derivative instruments.

+ References

No definition available.

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959

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