Derivative Instruments and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

Derivatives not designated as hedging instruments:

As of September 30, 2015
	Asset		Liability
Type of	Derivatives		Derivatives			Net
Futures Contracts	Fair Value		Fair Value			Fair Value
Agriculture	$	30,342	$	(77,932	)	$	(47,590	)
Currency		17,834		(11,257	)		6,577
Energy		61,700		(19,496	)		42,204
Indices		33,656		(14,207	)		19,449
Interest Rates		44,524		(8,864	)		35,660
Metals		8,575		(12,028	)		(3,453	)
	$	196,631	$	(143,784	)	$	52,847

As of December 31, 2014
	Asset		Liability
Type of	Derivatives		Derivatives			Net
Futures Contracts	Fair Value		Fair Value			Fair Value
Agriculture	$	119,669	$	(95,121	)	$	24,548
Currency		60,876		(31,502	)		29,374
Energy		218,011		(15,424	)		202,587
Indices		12,875		(13,050	)		(175	)
Interest Rates		168,536		(2,275	)		166,261
Metals		44,235		(875	)		43,360
	$	624,202	$	(158,247	)	$	465,955

Schedule of Derivative Instruments Included in Trading Activities [Table Text Block]

Trading gain (loss) for the following periods:

	Nine Months Ended September 30,
Type of Futures Contracts	2015			2014
Agriculture	$	(109,355	)	$	355,800
Currency		(443,817	)		290,288
Energy		149,498			(702,474	)
Indices		(112,781	)		(425,168	)
Interest Rates		204,790			128,532
Metals		(165,505	)		(98,254	)
	$	(477,170	)	$	(451,276	)

	Three Months Ended September 30,
Type of Futures Contracts	2015			2014
Agriculture	$	(91,186	)	$	333,821
Currency		(145,463	)		242,765
Energy		204,334			(448,884	)
Indices		(93,326	)		180,925
Interest Rates		97,326			111,083
Metals		(10,263	)		230,940
	$	(38,578	)	$	650,650