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Fair Value Measurements Fair Value Measurements Not Practicable (Details) | Mar. 31, 2019 USD ($)
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Fair Value Measurements [Abstract] |
Investment Owned, at Cost | $ 6,068,000

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- Definition Cost of the investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841 + Details
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