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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2021
Percentage of management fee in average daily total net assets | 0.75% |  |
Registration fees and offering expenses | $ 63,900 | $ 0 |
Estimated investor tax reporting cost | 375,000 |  |
Expenses write off | $ 139,105 |  |
Forecast [Member] |  |  |
Percentage of fees and other waivers expense |  |  | 0.15%
BNO [Member] | Forecast [Member] |  |  |
Estimated directors fees and expenses |  |  | $ 91,000
BNO and Related Public Fund [Member] | Forecast [Member] |  |  |
Estimated directors fees and expenses |  |  | $ 1,223,400

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- 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 http://asc.fasb.org/extlink&oid=118262090&loc=SL114874205-224268 + Details
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