Consolidated Statements of Changes in Members' Capital (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Members' capital, beginning balance			$ 76,385,327	$ 78,546,247
Subscriptions			781,500	2,674,594
Redemptions			(5,325,153)	(3,161,066)
Net loss	$ 403,353	$ (5,604,556)	(1,520,080)	(127,573)
Members' capital, ending balance	70,321,594	77,932,202	70,321,594	77,932,202
Class 0 Units [Member]
Members' capital, beginning balance			$ 57,571,360	$ 58,300,841
Members' capital, beginning balance (in units)			390,743.099	390,307.769
Subscriptions			$ 490,000	$ 1,627,644
Subscriptions (in units)			3,369.474	10,333.635
Redemptions			$ (4,926,886)	$ (2,328,452)
Redemptions (in units)			(34,461.696)	(15,113.729)
Net loss			$ (1,023,755)	$ 34,215
Members' capital, ending balance	$ 52,110,719	$ 57,634,248	$ 52,110,719	$ 57,634,248
Members' capital, ending balance (in units)	359,650.877	385,527.675	359,650.877	385,527.675
Class 2 Units [Member]
Members' capital, beginning balance			$ 18,813,967	$ 20,245,406
Members' capital, beginning balance (in units)			171,170.918	178,245.791
Subscriptions			$ 291,500	$ 1,046,950
Subscriptions (in units)			2,696.511	8,854.151
Redemptions			$ (398,267)	$ (832,614)
Redemptions (in units)			(3,698.040)	(6,922.541)
Net loss			$ (496,325)	$ (161,788)
Members' capital, ending balance	$ 18,210,875	$ 20,297,954	$ 18,210,875	$ 20,297,954
Members' capital, ending balance (in units)	170,169.389	180,177.401	170,169.389	180,177.401