STATEMENTS OF FINANCIAL CONDITION (Unaudited) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Trading Equity:
Unrestricted cash	$ 64,399,557	$ 79,053,213
Restricted cash	6,719,219	5,052,970
Total cash	71,118,776	84,106,183
Net unrealized gain on open contracts (MSIP)	758,791	356,301
Net unrealized loss on open contracts (MS&Co.)	(4,853,292)	(216,405)
Total net unrealized gain (loss) on open contracts	(4,094,501)	139,896
Options purchased (premiums paid $0 and $267,400, respectively)	0	366,896
Total Trading Equity	67,024,275	84,612,975
Interest receivable (MSSB)	2,093	5,799
Total Assets	67,026,368	84,618,774
Liabilities:
Redemptions payable	733,070	2,189,794
Accrued brokerage fees (MS&Co.)	353,171	400,033
Accrued management fees	117,724	176,681
Options written (premiums received $0 and $58,237, respectively)	0	166,225
Total Liabilities	1,203,965	2,932,733
Partners' Capital:
Limited Partners (6,388,571.646 and 7,633,482.867 Units, respectively)	65,076,736	80,808,446
General Partner (73,202.055 and 82,901.055 Units, respectively)	745,667	877,595
Total Partners' Capital	65,822,403	81,686,041
Total Liabilities and Partners' Capital	$ 67,026,368	$ 84,618,774
NET ASSET VALUE PER UNIT (in dollars per unit)	$ 10.19	$ 10.59