Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CASH FLOWS FROM OPERATING ACTIVITIES
NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS	$ (11,103,143)	$ 7,827,060	$ (9,291,824)
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:
Purchase of investments, net	(8,500,000)	(26,302,167)	(40,106,347)
Proceeds from disposition of investments	9,489,473	78,753,576	53,042,150
Realized losses (gains) on investments	3,294,790	(8,488,214)	(7,972,332)
Unrealized losses (gains) on investments	4,270,563	(2,228,689)	15,075,898
Decrease (increase) in interest and other receivables	251	(208,691)	793
Decrease (increase) in investment fund redemptions receivable	29,645,432	(28,145,432)	(1,500,000)
Decrease (increase) in investments in transit	16,600,000	(15,600,000)	(400,000)
(Decrease) increase in commissions payable	(6,812)	10,490	528
Increase (decrease) in accounts payable	21,707	(3,223)	54,523
(Decrease) increase in managed accounts fee payable	(222,219)	333,118	(6,456)
Decrease in management, incentive and administrative fees payable	(13,139)	(4,014)	(37,820)
NET CASH PROVIDED BY OPERATING ACTIVITIES	43,476,903	5,943,814	8,859,113
CASH FLOWS FROM FINANCING ACTIVITIES
Capital contributions received from members	26,056,109	26,384,864	21,768,956
Membership redemptions	(28,534,596)	(35,008,570)	(27,451,648)
NET CASH USED IN FINANCING ACTIVITIES	(2,478,487)	(8,623,706)	(5,682,692)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	40,998,416	(2,679,892)	3,176,421
Cash and cash equivalents at beginning of period	23,358,269	26,038,161	22,861,740
CASH AND CASH EQUIVALENTS AT END OF PERIOD	64,356,685	23,358,269	26,038,161
Cash paid for interest	0	0	0
Cash paid for taxes	$ 0	$ 0	$ 0