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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, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2023
Fees paid by the fund and related party transactions |  |  |  |  |
Percentage of management fee in average daily total net assets |  |  | 0.75% |  |
Registration fees and offering expenses | $ 0 | $ 64,610 | $ 0 | $ 128,510 |
Percentage of fees and other waivers expense |  |  | 0.15% |  |
Scenario Forecast |  |  |  |  |
Fees paid by the fund and related party transactions |  |  |  |  |
Estimated investor tax reporting cost |  |  |  |  | $ 150,000
BNO | Scenario Forecast |  |  |  |  |
Fees paid by the fund and related party transactions |  |  |  |  |
Estimated directors fees and expenses |  |  |  |  | 82,000
BNO and other Related Public Funds | Scenario Forecast |  |  |  |  |
Fees paid by the fund and related party transactions |  |  |  |  |
Estimated directors fees and expenses |  |  |  |  | $ 1,210,000

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- 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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