Condensed Consolidated Schedule of Investments (Parenthetical) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Schedule of Investments [Line Items]
Premiums paid	$ 1,001,094	$ 33,376
Premiums received	819,660	14,375
Fixed Income Securities [Member]
Schedule of Investments [Line Items]
Investment cost	14,710,463	21,993,704
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials South Korea [Member]
Schedule of Investments [Line Items]
Investment cost	649,412
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials Australia [Member]
Schedule of Investments [Line Items]
Investment cost	1,847,851
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials Chile [Member]
Schedule of Investments [Line Items]
Investment cost	998,211
Fixed Income Securities [Member] | Commercial Paper [Member] | Financials United States [Member]
Schedule of Investments [Line Items]
Investment cost	1,896,629
Fixed Income Securities [Member] | Commercial Paper [Member] | Energy United States [Member]
Schedule of Investments [Line Items]
Investment cost	1,242,569
Fixed Income Securities [Member] | Corporate Bonds [Member] | Financials Australia [Member]
Schedule of Investments [Line Items]
Investment cost	2,906,266
Fixed Income Securities [Member] | Corporate Bonds [Member] | Financials United States [Member]
Schedule of Investments [Line Items]
Investment cost	2,305,348	6,682,059
Fixed Income Securities [Member] | Corporate Bonds [Member] | Energy Great Britain [Member]
Schedule of Investments [Line Items]
Investment cost	1,527,135
Fixed Income Securities [Member] | Government Agencies [Member]
Schedule of Investments [Line Items]
Investment cost	5,999,550	10,499,879
Fixed Income Securities [Member] | Government Agencies [Member] | Unites States [Member]
Schedule of Investments [Line Items]
Investment cost	9,699,550	10,499,879
Fixed Income Securities [Member] | Short-Term Investment Funds [Member]
Schedule of Investments [Line Items]
Investment cost	3,825	5,432
Fixed Income Securities [Member] | Short-Term Investment Funds [Member] | Unites States [Member]
Schedule of Investments [Line Items]
Investment cost	4,093	5,432
Long Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums paid	183,880
Long Positions, Futures Positions [Member] | Put Options [Member] | Currency [Member]
Schedule of Investments [Line Items]
Premiums paid	33,376
Long Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums paid	817,214
Short Positions, Futures Positions [Member] | Put Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums received	340,595
Short Positions, Futures Positions [Member] | Put Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Premiums received	60,320
Short Positions, Futures Positions [Member] | Put Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Premiums received	14,375
Short Positions, Futures Positions [Member] | Put Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Premiums received	12,810
Short Positions, Futures Positions [Member] | Call Options [Member] | Agriculture [Member]
Schedule of Investments [Line Items]
Premiums received	273,697
Short Positions, Futures Positions [Member] | Call Options [Member] | Energy [Member]
Schedule of Investments [Line Items]
Premiums received	33,700
Short Positions, Futures Positions [Member] | Call Options [Member] | Indices [Member]
Schedule of Investments [Line Items]
Premiums received	19,125
Short Positions, Futures Positions [Member] | Call Options [Member] | Interest Rates [Member]
Schedule of Investments [Line Items]
Premiums received	45,063
Short Positions, Futures Positions [Member] | Call Options [Member] | Metals [Member]
Schedule of Investments [Line Items]
Premiums received	$ 34,350