Consolidated Statements of Changes in Members' Capital (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Members' capital, beginning balance	$ 27,344,100	$ 27,978,759
Subscriptions	0	323,500
Redemptions	(970,453)	(1,257,799)
Net income (loss)	1,303,753	(24,459)
Members' capital, ending balance	27,677,400	27,020,001
Class 0 Units [Member]
Members' capital, beginning balance	$ 16,605,529	$ 16,801,362
Members' capital, beginning balance (in units)	109,215.865	125,660.811
Subscriptions	$ 0	$ 250,000
Subscriptions (in units)	0	1,882.369
Redemptions	$ (461,116)	$ (563,529)
Redemptions (in units)	(3,026.716)	(4,231.016)
Net income (loss)	$ 773,231	$ (1,083)
Members' capital, ending balance	$ 16,917,644	$ 16,486,750
Members' capital, ending balance (in units)	106,189.149	123,312.164
Class 2 Units [Member]
Members' capital, beginning balance	$ 10,738,571	$ 11,177,397
Members' capital, beginning balance (in units)	99,110.353	116,424.562
Subscriptions	$ 0	$ 73,500
Subscriptions (in units)	0	775.525
Redemptions	$ (509,337)	$ (694,270)
Redemptions (in units)	(4,554.736)	(7,277.581)
Net income (loss)	$ 530,522	$ (23,376)
Members' capital, ending balance	$ 10,759,756	$ 10,533,251
Members' capital, ending balance (in units)	94,555.617	109,922.506