Investments (Details 1) - Interest Rate Risk [Member] - USD ($)	3 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]
Location of Gain (Loss) on Derivatives	Net realized gain (loss) on investments, futures and options contracts and/or Change in unrealized gain (loss) on investments, futures and options contracts	Net realized gain (loss) on investments, futures and options contracts and/or Change in unrealized gain (loss) on investments, futures and options contracts
Realized Gain (Loss) on Derivatives Recognized in Income	$ (108,952)	$ (66,126)
Change in Unrealized gain (loss) on Derivatives Recognized in Income	$ 221,731	$ 274,014

It represents the embedded derivative location of gain loss in financial statements.

No definition available.

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- Definition

The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.13(h))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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