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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS - Additional Information (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2019
Percentage Of Management Fee In Average Daily Total Net Assets | 0.75% |
Estimated Investor Tax Reporting Cost |  | $ 100,000
Percentage Of Fees and Other Waivers Expense |  | 0.15%
Expenses Write Off |  | $ 44,752
BNO [Member] |  |
Estimated Directors Fees and Expenses |  | 543,500
BNO and Related Public Fund [Member] |  |
Estimated Directors Fees and Expenses |  | $ 19,000

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- Definition The percentage of fees and other waivers expense of maximum base points . + References No definition available. + Details
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- Details
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- Details
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