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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2022
Percentage of management fee in average daily total net assets 0.75%    
Registration fees and offering expenses $ 63,900 $ 63,900  
Estimated investor tax reporting cost     $ 250,000
Percentage of fees and other waivers expense 0.15%    
Expenses write off $ 0 $ 139,105  
BNO [Member]      
Directors fees and expenses     83,000
BNO and Related Public Fund [Member]      
Directors fees and expenses     $ 1,258,000