Fair Value Measurements and Disclosures (Details) (Fair Value Measured on a Recurring Basis [Member], USD $)	Jun. 30, 2013		Dec. 31, 2012
Assets [Abstract]
Futures	$ 9,267,211		$ 7,876,474
Forwards	553,752		619,732
Total Assets	9,820,963		8,496,206
Liabilities [Abstract]
Futures	3,267,000		4,169,335
Forwards	608,868		571,652
Total Liabilities	3,875,868		4,740,987
Assets and Liabilities Measured at Fair Value [Abstract]
Unrealized currency gain	(1,192,532)		(1,203,865)
Net fair value	4,752,563	[1]	2,551,354	[1]
Unadjusted Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Futures	9,267,211		7,876,474
Forwards	0		0
Total Assets	9,267,211		7,876,474
Liabilities [Abstract]
Futures	3,267,000		4,169,335
Forwards	0		0
Total Liabilities	3,267,000		4,169,335
Assets and Liabilities Measured at Fair Value [Abstract]
Net fair value	6,000,211	[1]	3,707,139	[1]
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Futures	0		0
Forwards	553,752		619,732
Total Assets	553,752		619,732
Liabilities [Abstract]
Futures	0		0
Forwards	608,868		571,652
Total Liabilities	608,868		571,652
Assets and Liabilities Measured at Fair Value [Abstract]
Net fair value	(55,116)	[1]	48,080	[1]
Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Futures
Forwards
Total Assets
Liabilities [Abstract]
Futures
Forwards
Total Liabilities
Assets and Liabilities Measured at Fair Value [Abstract]
Net fair value		[1]		[1]

[1] This amount comprises the “Net unrealized gain on open contracts” on the Statements of Financial Condition.