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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details Textual)	3 Months Ended
	Mar. 31, 2016 USD ($)
Percentage Of Management Fee In Average Daily Total Net Assets	0.75%
Estimated Investor Tax Reporting Cost	$ 161,000
Percentage Of Fees and Other Waivers Expense	0.15%
Expenses Write Off	$ 59,762
BNO [Member]
Estimated Directors Fees and Expenses	10,400
BNO and Related Public Fund [Member]
Estimated Directors Fees and Expenses	$ 554,800