Consolidated Statements of Financial Condition (USD $)	Sep. 30, 2012	Dec. 31, 2011
Equity in commodity Trading accounts:
Cash on deposit with broker	$ 2,530,577	$ 2,670,744
Unrealized gain (loss) on open contracts	159,905	363,947
Purchased options on futures contracts (premiums paid - $1,001,094 and $33,376 respectively)	515,818	22,525
Total due from broker	3,206,300	3,057,216
Cash and cash equivalents on deposit with affiliate	7,908,345	9,596,823
Cash on deposit with bank	53,410	648
Fixed income securities (cost $14,710,463 and $21,993,704, respectively), held by affiliate	14,704,345	21,870,890
Interest receivable	12,407	123,363
Cash on deposit with bank - Non-Trading	736,249	1,647,219
Prepaid expenses - Non-Trading	85,539	95,825
Total Assets	26,706,595	36,391,984
Equity in commodity Trading accounts:
Options written on futures contracts (premiums received - $819,660 and $14,375, respectively)	569,588	1,006
Accrued commissions	60,364	111,034
Accrued management fees	40,182	48,884
Accrued incentive fees	25,462
Accrued operating expenses	298,654	217,118
Accrued offering expenses	32,974
Redemptions payable-Trading	262,118	493,332
Accrued legal fees- Non-Trading	5,363	500
Accrued management fees to U.S. Bank-Non-Trading	16,566	31,715
Distribution payable - Non-Trading		536,188
Total liabilities	1,311,271	1,439,777
Unitholders' capital:
Unitholders' capital	25,395,324	34,952,207
Total Liabilities and Unitholders' Capital	26,706,595	36,391,984
Trading [Member]
Unitholders' capital:
Unitholders' capital	24,595,446	33,777,543
Trading [Member] | Class A [Member]
Net asset value per unit:
Net Asset Value Per Unit	$ 80.26	$ 91.32
Trading [Member] | Class B [Member]
Net asset value per unit:
Net Asset Value Per Unit	$ 86.52	$ 96.98
Trading [Member] | Beneficial Owners [Member] | Class A [Member]
Unitholders' capital:
Unitholders' capital	23,681,527	32,497,392
Trading [Member] | Beneficial Owners [Member] | Class B [Member]
Unitholders' capital:
Unitholders' capital	870,979	1,231,294
Trading [Member] | Managing Owner [Member] | Class A [Member]
Unitholders' capital:
Unitholders' capital	42,940	48,857
LLC Equity/Non-Trading [Member]
Unitholders' capital:
Unitholders' capital	859,734	1,174,664
Net asset value per unit:
Net Asset Value Per Unit	$ 0.35	$ 0.52
LLC Equity/Non-Trading [Member] | Participating Owners [Member]
Unitholders' capital:
Unitholders' capital	89,716	158,535
LLC Equity/Non-Trading [Member] | Nonparticipating Owners [Member]
Unitholders' capital:
Unitholders' capital	$ 710,162	$ 1,016,129