Note 11 - Subsequent Events (Details)	12 Months Ended
Dec. 31, 2015 USD ($)
Subsequent to December 31, 2014 \| Line of Credit
Short-term Debt, Average Outstanding Amount	$ 35,000
On February 12, 2016
Subsequent Event, Date	Feb. 12, 2016
Subsequent Event, Description	White House announced President Obama had designated three national monuments in southern California covering 1.8 million acres of federal lands. We believe our Sacramento claims are within the borders of one of these new monuments.

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

No definition available.

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- Definition

Describes the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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- Definition

Date the event occurred after the balance sheet date but before financial statements are issues or available to be issued, in CCYY-MM-DD format.

+ References

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