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4. Joint Ventures: Schedule of percentage ownership and method of accounting (Details)	Jun. 30, 2017	Dec. 31, 2016
Details
Investment Owned, Percent of Net Assets	65.00%	65.00%
Investment owned percentage of net assets 2	50.00%
Investment owned percentage of net assets 3		50.00%

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

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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

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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 210
-Section 50
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