Investment in Joint Venture - Vulcan Oil & Gas Inc. (Detail Textuals 2) (Vulcan Note)	Mar. 31, 2013
Vulcan Note
Business Acquisition [Line Items]
Percentage of interest charge on principal sum	10.00%
Percentage of interest increase per annum	4.00%
Percentage of interest rate in the event of principal is not paid by the December 31, 2013	14.00%

Interest rate stated in the contractual debt agreement.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant