Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Trading gain (loss):
Realized gain (loss) on closed positions	$ 127,000	$ (779,555)	$ (227,405)	$ (1,420,214)
Change in unrealized gain (loss) on open positions	(313,812)	273,115	(353,225)	(441,764)
Realized gain (loss) on investment in Global Diversified Managed Futures Portfolio LLC	(12,749)	0	(12,749)	0
Change in unrealized gain (loss) on investment in Global Diversified Managed Futures Portfolio LLC	(159,920)	0	0	0
Foreign currency transaction gain (loss)	2,405	(9,944)	(1,364)	(25,345)
Total Trading gain (loss)	(357,076)	(516,384)	(594,743)	(1,887,323)
Net investment income (loss):
Interest income	55,729	29,255	190,469	183,719
Realized gain (loss) on fixed income securities	(56,081)	(18,353)	(115,248)	(196,445)
Change in unrealized gain (loss) on fixed income securities	23,753	20,421	(35,140)	122,128
Total net investment gain (loss)	23,401	31,323	40,081	109,402
Expenses:
Advisory fees	7,538	13,729	24,977	40,594
Management fees	87,658	128,690	286,755	368,089
Incentive fees	0	25,462	0	29,873
Ongoing offering expenses	7,000	21,000	28,500	58,467
Operating expenses	108,000	150,000	330,000	420,534
Total expenses	409,435	641,292	1,336,730	1,954,142
Trading income (loss)	(743,110)	(1,126,353)	(1,891,392)	(3,732,063)
Non-Trading income (loss):
Interest on Non-Trading reserve	65	76	331	218
Collections in excess of impaired value	240,556	0	240,556	0
Legal and administrative fees	(15,304)	0	(110,486)	(139,299)
Management fees paid to US Bank	(108,337)	(59,931)	(185,400)	(235,705)
Non-Trading income (loss)	116,980	(59,855)	(54,999)	(374,786)
Net income (loss)	(626,130)	(1,186,208)	(1,946,391)	(4,106,849)
Capital Unit, Class A [Member]
Expenses:
Commissions	196,175	296,274	655,721	1,015,126
Capital Unit, Class B [Member]
Expenses:
Commissions	$ 3,064	$ 6,137	$ 10,777	$ 21,459