Consolidated Statements of Financial Condition (USD $)	Mar. 31, 2012	Dec. 31, 2011
Equity in commodity Trading accounts:
Cash on deposit with broker	$ 2,382,766	$ 2,670,744
Unrealized gain on open contracts	11,536	363,947
Purchased options on futures contracts (premiums paid - $37,722 and $33,376, respectively)	55,307	22,525
Total due from broker	2,449,609	3,057,216
Cash and cash equivalents on deposit with affiliate	5,851,390	9,596,823
Cash on deposit with bank	1,324	648
Fixed income securities (cost $22,676,316 and $21,993,704, respectively), held by affiliate	22,629,381	21,870,890
Interest receivable	71,679	123,363
Cash on deposit with bank - Non-Trading	1,009,290	1,647,219
Prepaid expenses - Non-Trading	135,509	95,825
Total Assets	32,148,182	36,391,984
Equity in commodity Trading accounts:
Options written on futures contracts (premiums received - $14,375)		1,006
Accrued commissions	90,841	111,034
Accrued management fees	43,957	48,884
Accrued operating expenses	152,593	217,118
Redemptions payable-Trading	774,512	493,332
Accrued legal fees- Non-Trading	53,000	500
Accrued management fees to U.S. Bank-Non-Trading	18,899	31,715
Distribution payable - Non-Trading	1,530	536,188
Total liabilities	1,135,332	1,439,777
Unitholders' capital:
Total unitholders' capital	31,012,850	34,952,207
Total Liabilities and Unitholders' Capital	32,148,182	36,391,984
Trading
Unitholders' capital:
Total unitholders' capital	29,941,465	33,777,543
Trading | Class A
Net asset value per unit:
Net asset value per unit	$ 86.37	$ 91.32
Trading | Class B
Net asset value per unit:
Net asset value per unit	$ 92.18	$ 96.98
Trading | Beneficial owners | Class A
Unitholders' capital:
Total unitholders' capital	28,853,520	32,497,392
Trading | Beneficial owners | Class B
Unitholders' capital:
Total unitholders' capital	1,041,735	1,231,294
Trading | Managing owner | Class A
Unitholders' capital:
Total unitholders' capital	46,210	48,857
LLC equity/Non-Trading
Unitholders' capital:
Total unitholders' capital	1,071,385	1,174,664
Net asset value per unit:
Net asset value per unit	$ 0.47	$ 0.52
LLC equity/Non-Trading | Participating owners
Unitholders' capital:
Total unitholders' capital	135,206	158,535
LLC equity/Non-Trading | Nonparticipating owners
Unitholders' capital:
Total unitholders' capital	$ 936,179	$ 1,016,129