Disposition of Oil and Gas Properties - Additional Information (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Feb. 29, 2012
Acquisitions And Dispositions Of Oil And Gas Properties [Line Items]
Gross proceeds from selling of working interest and related lease			$ 1,109,000
Net proceeds from sale of working interest and related lease			826,000
Asset retirement obligations, net of current portion	584,182	569,128	16,000
Gain after reduction of net book value of property			$ 533,048
Overriding royalty interest			2.575%
Sale comprises, percentage of barrels of oil			1.60%
Company's discontinued future net revenues prior to the sale			2.20%

Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 143

-Paragraph 3, 10, 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 410

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

Name:	us-gaap_AssetRetirementObligationsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant