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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2019
Fees Paid and Related Party Transactions [Line Items]
Estimated directors fees and expenses	$ 215	$ 338	$ 543	$ 753
Licensing fee incurred	167	234	349	521
Expense waiver	$ 21,137	$ 15,329	$ 42,114	$ 33,091
Licensing Agreements [Member]
Fees Paid and Related Party Transactions [Line Items]
Fee percentage			0.015%
Future Period - for the year ending December 31, 2019 [Member] | Scenario, Forecast [Member]
Fees Paid and Related Party Transactions [Line Items]
Estimated investor tax reporting cost					$ 75,000
Future Period - for the year ending December 31, 2019 [Member] | Maximum [Member]
Fees Paid and Related Party Transactions [Line Items]
Costs and expenses annual limit for reimbursement			0.15%
UNL [Member]
Fees Paid and Related Party Transactions [Line Items]
Percentage of Contractual Obligated to Pay			0.75%
UNL [Member] | Scenario, Forecast [Member]
Fees Paid and Related Party Transactions [Line Items]
Estimated directors fees and expenses					1,200
UNL [Member] | Related Public Funds [Member] | Scenario, Forecast [Member]
Fees Paid and Related Party Transactions [Line Items]
Estimated directors fees and expenses					$ 543,500

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Expense Waiver

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Fees Paid and Related Party Transactions [Line Items]

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- Definition

It represent the value of license fees and other offering expenses.

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The information pertaining to percentage of contractual obligation pay.

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- Definition

Noninterest expense related to directors' fees which are fees paid by an Entity to its directors. Directors' fees may be paid in addition to salary and other benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14)
-URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260

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- Definition

Amount of general expenses not normally included in Other Operating Costs and Expenses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.6)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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