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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2023
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Percentage of management fee in average daily total net assets			0.60%
Registration fees	$ 0	$ 17,015	$ 0	$ 92,130
Estimated directors' fees and expenses	9,750	11,478	31,211	35,691
Licensing fee incurred	$ 2,904	$ 4,305	$ 8,710	$ 15,236
Scenario Forecast
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Estimated directors' fees and expenses					$ 40,000
Investor tax reporting cost					100,000
USL and other Related Public Funds | Scenario Forecast
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Estimated directors' fees and expenses					$ 1,210,000
Licensing Fees
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fee percentage			0.015%

X

- Definition

Amount of registration fee expense for issuance of shares or units.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Subparagraph (m)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483581/946-220-45-3

+ Details

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X

- 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
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

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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
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.6)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

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- Definition

Percentage of base fee.

+ References

No definition available.

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- Definition

Fees Paid and Related Party Transactions [Line Items]

+ References

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Percentage of Management Fee In Average Daily Total Net Assets.

+ References

No definition available.

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