Condensed Consolidated Schedule of Investments (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Fixed Income Securities [Member]
Schedule of Investments [Line Items]
Fair value	$ 14,704,345	$ 21,870,890
Fixed Income Securities [Member] | Commercial Paper [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	13.77%	9.00%
Fair value	3,495,474	3,142,811
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials South Korea [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	2.56%
Fair value	649,412
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials Australia [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	7.28%
Fair value	1,847,851
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials Chile [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	3.93%
Fair value	998,211
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials United States [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		5.44%
Fair value		1,899,873
Fixed Income Securities [Member] | Commercial Paper [Member] | Energy United States [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		3.56%
Fair value		1,242,938
Fixed Income Securities [Member] | Corporate Bonds [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	20.49%	23.53%
Fair value	5,202,811	8,224,432
Fixed Income Securities [Member] | Corporate Bonds [Member] | Financials Australia [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	11.43%
Fair value	2,901,846
Fixed Income Securities [Member] | Corporate Bonds [Member] | Financials United States [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	9.06%	19.22%
Fair value	2,300,965	6,717,547
Fixed Income Securities [Member] | Corporate Bonds [Member] | Energy Great Britain [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		4.31%
Fair value		1,506,885
Fixed Income Securities [Member] | Government Agencies [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	23.64%	30.04%
Fair value	6,002,235	10,498,215
Fixed Income Securities [Member] | Government Agencies [Member] | Unites States [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	23.64%	30.04%
Fair value	6,002,235	10,498,215
Fixed Income Securities [Member] | Short-Term Investment Funds [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.02%	0.02%
Fair value	3,825	5,432
Fixed Income Securities [Member] | Short-Term Investment Funds [Member] | Unites States [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.02%	0.02%
Fair value	3,825	5,432
Long Positions, Futures Positions [Member]
Schedule of Investments [Line Items]
Fair value	317,669	(373,540)
Long Positions, Futures Positions [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.68%)	(0.34%)
Fair value	171,683	(119,410)
Long Positions, Futures Positions [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(1.53%)	0.01%
Fair value	(387,861)	3,573
Long Positions, Futures Positions [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.06%	0.03%
Fair value	(16,433)	9,244
Long Positions, Futures Positions [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.08%)	0.05%
Fair value	(21,477)	17,851
Long Positions, Futures Positions [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.18%	0.40%
Fair value	44,597	139,768
Long Positions, Futures Positions [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	2.08%	(0.23%)
Fair value	527,160	(80,138)
Long Positions, Futures Positions [Member] | Forward Positions [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		(0.99%)
Fair value		(344,428)
Long Positions, Futures Positions [Member] | Put Options [Member]
Schedule of Investments [Line Items]
Fair value	128,350	22,525
Long Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.51%
Fair value	128,350
Long Positions, Futures Positions [Member] | Put Options [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		0.06%
Fair value		22,525
Long Positions, Futures Positions [Member] | Call Options [Member]
Schedule of Investments [Line Items]
Fair value	387,468
Long Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	1.58%
Fair value	387,468
Short Positions, Futures Positions [Member]
Schedule of Investments [Line Items]
Fair value	(157,764)	737,487
Short Positions, Futures Positions [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.29%)	0.64%
Fair value	(74,850)	225,038
Short Positions, Futures Positions [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	1.14%	0.02%
Fair value	290,772	6,835
Short Positions, Futures Positions [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.00%	(0.02%)
Fair value	370	(5,365)
Short Positions, Futures Positions [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.12%	(0.13%)
Fair value	30,400	(47,027)
Short Positions, Futures Positions [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	0.00%	(0.03%)
Fair value	(1,160)	(10,045)
Short Positions, Futures Positions [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(1.59%)	0.21%
Fair value	(403,296)	72,320
Short Positions, Futures Positions [Member] | Forward Positions [Member] | Currency [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		1.42%
Fair value		495,731
Short Positions, Futures Positions [Member] | Put Options [Member]
Schedule of Investments [Line Items]
Fair value	(306,332)	(1,006)
Short Positions, Futures Positions [Member] | Put Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.16%)
Fair value	(41,360)
Short Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(1.01%)
Fair value	(256,992)
Short Positions, Futures Positions [Member] | Put Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets		0.00%
Fair value		(1,006)
Short Positions, Futures Positions [Member] | Put Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.03%)
Fair value	(7,980)
Short Positions, Futures Positions [Member] | Call Options [Member]
Schedule of Investments [Line Items]
Fair value	(263,256)
Short Positions, Futures Positions [Member] | Call Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.13%)
Fair value	(33,880)
Short Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.59%)
Fair value	(150,388)
Short Positions, Futures Positions [Member] | Call Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.05%)
Fair value	(11,700)
Short Positions, Futures Positions [Member] | Call Options [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.14%)
Fair value	(36,188)
Short Positions, Futures Positions [Member] | Call Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Percentage of total investment to total assets	(0.12%)
Fair value	(31,100)
Total Unrealized Gain (Loss) on Open Contracts [Member]
Schedule of Investments [Line Items]
Fair value	$ 159,905	$ 363,947