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4. Joint Ventures: Schedule of percentage ownership and method of accounting (Details)	Mar. 31, 2015	Dec. 31, 2014
Details
Investment Owned, Percent of Net Assets	66.00%us-gaap_InvestmentOwnedPercentOfNetAssets	66.00%us-gaap_InvestmentOwnedPercentOfNetAssets
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- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

+ References

No definition available.

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- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 320

-Section S99

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