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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 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	$ 37,350
Estimated directors' fees and expenses	10,724	12,842
Licensing fee incurred	$ 2,946	$ 5,564
Scenario Forecast
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Estimated directors' fees and expenses			$ 33,000
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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section 45
-Paragraph 3
-Subparagraph (m)
-URI https://asc.fasb.org/extlink&oid=124433917&loc=SL114874205-224268

+ Details

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Balance Type:	debit
Period Type:	duration

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14)
-URI https://asc.fasb.org/extlink&oid=120399700&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 https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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X

- Definition

Percentage of base fee.

+ References

No definition available.

+ Details

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X

- Definition

Fees Paid and Related Party Transactions [Line Items]

+ References

No definition available.

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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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Balance Type:	debit
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X

- Definition

Percentage of Management Fee In Average Daily Total Net Assets.

+ References

No definition available.

+ Details

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