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v3.19.1

CONTRACTS AND AGREEMENTS (Details Textual) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 USD ($) $ / Unit | Dec. 31, 2019 $ / Unit
Annual Fee Payable For Transfer Agency Services | $ 20,000 |
Maximum [Member] |  |
Transaction fees per transaction | $ / Unit | 15 |
Commission Per Round Turn | $ 8 |
Minimum [Member] |  |
Annual Fee Payable For Transfer Agency Services | 75,000 |
Transaction fees per transaction | $ / Unit |  | 7
Commission Per Round Turn | $ 7 |
First $500 Million Of The Related Public Funds' Combined Net Assets [Member] |  |
Fee percentage | 0.06% |
First $500 Million Of The Related Public Funds' Combined Net Assets [Member] | Maximum [Member] |  |
Base amount for determining fee percentage | $ 500,000,000 |
Related Public Funds' Combined Net Assets Greater Than $500 Million But Less Than $1 Billion [Member] |  |
Fee percentage | 0.0465% |
Related Public Funds' Combined Net Assets Greater Than $500 Million But Less Than $1 Billion [Member] | Maximum [Member] |  |
Base amount for determining fee percentage | $ 1,000,000,000 |
Related Public Funds' Combined Net Assets Greater Than $500 Million But Less Than $1 Billion [Member] | Minimum [Member] |  |
Base amount for determining fee percentage | $ 500,000,000 |
Related Public Funds' Combined Net Assets Exceed $1 Billion [Member] |  |
Fee percentage | 0.035% |
Related Public Funds' Combined Net Assets Exceed $1 Billion [Member] | Minimum [Member] |  |
Base amount for determining fee percentage | $ 1,000,000,000 |
Marketing Agreement [Member] | BNO's assets up to $3 billion [Member] |  |
Fee percentage | 0.06% |
Marketing Agreement [Member] | BNO's assets up to $3 billion [Member] | Maximum [Member] |  |
Base amount for determining fee percentage | $ 3,000,000,000 |
Marketing Agreement [Member] | BNO's assets in excess of $3 billion [Member] |  |
Fee percentage | 0.04% |
Marketing Agreement [Member] | BNO's assets in excess of $3 billion [Member] | Maximum [Member] |  |
Fee percentage | 10.00% |
Marketing Agreement [Member] | BNO's assets in excess of $3 billion [Member] | Minimum [Member] |  |
Base amount for determining fee percentage | $ 3,000,000,000 |

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