STATEMENTS OF FINANCIAL CONDITION (Unaudited) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Trading Equity:
Unrestricted cash	$ 64,537,107	$ 79,053,213
Restricted cash	7,843,653	5,052,970
Total cash	72,380,760	84,106,183
Net unrealized gain (loss) on open contracts (MSIP)	(255,666)	356,301
Net unrealized loss on open contracts (MS&Co.)	(3,598,378)	(216,405)
Total net unrealized gain (loss) on open contracts	(3,854,044)	139,896
Options purchased (premiums paid $135,056 and $267,400, respectively)	178,422	366,896
Total Trading Equity	68,705,138	84,612,975
Interest receivable (MSSB)	366	5,799
Total Assets	68,705,504	84,618,774
Liabilities:
Redemptions payable	1,152,427	2,189,794
Accrued brokerage fees (MS&Co.)	355,949	400,033
Accrued management fees	118,650	176,681
Options written (premiums received $68,000 and $58,237, respectively)	68,918	166,225
Total Liabilities	1,695,944	2,932,733
Partners' Capital:
Limited Partners (6,711,796.206 and 7,633,482.867 Units, respectively)	66,286,607	80,808,446
General Partner (73,202.055 and 82,901.055 Units, respectively)	722,953	877,595
Total Partners' Capital	67,009,560	81,686,041
Total Liabilities and Partners' Capital	$ 68,705,504	$ 84,618,774
NET ASSET VALUE PER UNIT (in dollars per unit)	$ 9.88	$ 10.59