Statements of Assets and Liabilities (USD $)	Dec. 31, 2011		Dec. 31, 2010
Equity in broker trading accounts
Cash and cash equivalents at broker	$ 662,202		$ 4,513,906
Net unrealized gain on open futures contracts	113,800		647,664
Total equity in broker trading accounts	776,002		5,161,570
U.S. Treasury Bills	3,999,691	[1]	4,999,789	[1]
Cash and cash equivalents	1,012,647		1,197,855
Prepaid expenses	7,850		4,124
Total assets	5,796,190		11,363,338
Liabilities
Partner redemptions payable	497,919		64,059
Accrued commissions payable to related parties	10,569		36,291
Other accrued liabilities	14,045		15,052
Total liabilities	522,533		115,402
Net assets	5,273,657		11,247,936
Analysis of net assets
Limited partners	5,273,657		11,247,936
Net assets	$ 5,273,657	[2]	$ 11,247,936	[2]
Partnership units outstanding
Limited partners units outstanding	1,637.79		2,658.37
Total partnership units outstanding	1,637.79		2,658.37

[1] Cost $3,986,110 and $4,998,420, respectively

[2] Equivalent to $3,219.98 and $4,231.14 per unit, respectively