Consolidated Statements of Changes in Members' Capital - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Members' capital, beginning balance	$ 76,385,327	$ 78,546,247
Subscriptions	8,426,500	7,354,389
Redemptions	(20,417,026)	(8,069,824)
Net loss	(895,561)	(1,445,485)
Members' capital, ending balance	63,499,240	76,385,327
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	$ 7,815,000	$ 5,069,138
Subscriptions (in units)	56,081.486	33,836.753
Redemptions	$ (18,057,875)	$ (5,054,568)
Redemptions (in units)	(127,527.595)	(33,401.423)
Net loss	$ (416,179)	$ (744,051)
Members' capital, ending balance	$ 46,912,306	$ 57,571,360
Members' capital, ending balance (in units)	319,296.990	390,743.099
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	$ 611,500	$ 2,285,251
Subscriptions (in units)	5,700.388	19,815.908
Redemptions	$ (2,359,151)	$ (3,015,256)
Redemptions (in units)	(22,470.192)	(26,890.781)
Net loss	$ (479,382)	$ (701,434)
Members' capital, ending balance	$ 16,586,934	$ 18,813,967
Members' capital, ending balance (in units)	154,401.114	171,170.918