XML 23 R30.htm IDEA: XBRL DOCUMENT v3.2.0.727
FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 2) - USD ($)
 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Derivatives not Accounted for as Hedging Instruments Futures - Commodity Contracts  
Location of Gain (Loss) on Derivatives Recognized in Income Change in unrealized gain (loss) on open positions  
Realized Gain (Loss) on Derivatives Recognized in Income $ 5,265,672 $ (7,660)
Change in Unrealized Gain (Loss) on Derivatives Recognized in Income $ 4,469,818 $ 1,670,430
Commodity Contract [Member]    
Location of Gain (Loss) on Derivatives Recognized in Income Realized gain (loss) on closed positions