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8. Asset Retirement Obligation (Details)	12 Months Ended
	Dec. 31, 2015
Details
Fair Value Assumptions, Risk Free Interest Rate	5.40%

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- Definition

Risk-free interest rate assumption used in valuing an instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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- References

No definition available.

+ Details

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