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4. Joint Ventures: Schedule of percentage ownership and method of accounting (Details)	Jun. 30, 2015	Dec. 31, 2014
Details
Investment Owned, Percent of Net Assets	67.00%	66.00%
Investment owned percentage of net assets 2	48.00%	48.00%

X

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



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-Name Accounting Standards Codification



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