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ORGANIZATION AND BUSINESS (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 18 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 02, 2010 | Feb. 29, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | May 31, 2010 | Dec. 31, 2009
Units Issued During Period To Authorized Purchasers Through Distributors |  | 50,000 |  |  |  |  |  |
Units Issued During Period To Authorized Purchasers Through Marketing Agent |  | 100,000 |  |  |  |  |  |
Transaction Fee |  |  | $ 350 |  |  |  |  |
Initially Registered Units Of Entity With Sec |  |  |  |  |  | 50,000,000 |  |
Net asset value per unit | $ 50.00 |  | $ 81.95 | $ 74.54 | $ 63.08 |  | $ 50.00 | [1]
Initial stock units issued | 200,000 |  |  |  |  |  |  |
Initial Units Value, Issued | 10,000,000 |  |  |  |  |  |  |
Total Units Registered Of Entity |  |  | 50,000,000 |  |  |  |  |
Prior to February 29, 2012 |  |  |  |  |  |  |  |
Transaction Fee |  |  | $ 1,000 |  |  |  |  |
[1] | The commencement of operations of the United States Brent Oil Fund, LP was June 2, 2010.

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