Consolidated Statements of Changes in Members' Capital (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Class 0 Units [Member]
Members' capital, beginning balance			$ 58,300,841	$ 58,310,022
Members' capital, beginning balance (in units)			390,307.769	456,544.588
Subscriptions			$ 1,627,644	$ 438,000
Subscriptions (in units)			10,333.635	3,761.712
Redemptions			$ (2,328,452)	$ (8,620,876)
Redemptions (in units)			(15,113.729)	(74,997.401)
Net income (loss)			$ 34,215	$ (5,815,474)
Members' capital, ending balance	$ 57,634,248	$ 44,311,672	$ 57,634,248	$ 44,311,672
Members' capital, ending balance (in units)	385,527.675	385,308.899	385,527.675	385,308.899
Class 2 Units [Member]
Members' capital, beginning balance			$ 20,245,406	$ 18,349,524
Members' capital, beginning balance (in units)			178,245.791	186,461.512
Subscriptions			$ 1,046,950	$ 2,227,795
Subscriptions (in units)			8,854.151	23,989.020
Redemptions			$ (832,614)	$ (1,652,803)
Redemptions (in units)			(6,922.541)	(18,603.858)
Net income (loss)			$ (161,788)	$ (2,093,156)
Members' capital, ending balance	$ 20,297,954	$ 16,831,360	$ 20,297,954	$ 16,831,360
Members' capital, ending balance (in units)	180,177.401	191,846.674	180,177.401	191,846.674
Members' capital, beginning balance			$ 78,546,247	$ 76,659,546
Subscriptions			2,674,594	2,665,795
Redemptions			(3,161,066)	(10,273,679)
Net income (loss)	$ (5,604,556)	$ 475,953	(127,573)	(7,908,630)
Members' capital, ending balance	$ 77,932,202	$ 61,143,032	$ 77,932,202	$ 61,143,032