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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Percentage of management fee in average daily total net assets 0.75%    
Registration fees and offering expenses $ 259,150 $ 234,290 $ 0
Estimated investor tax reporting cost $ 400,000    
Percentage of fees and other waivers expense 0.15%    
Expenses write off $ 202,151 660,603 80,032
BNO [Member]      
Directors fees and expenses 74,951 28,104 19,301
Investor Reporting Costs   221,582 90,200
BNO and Related Public Fund [Member]      
Directors fees and expenses $ 1,081,963 $ 585,896 $ 556,951