Capital Accounts (Details) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Capital Accounts [Abstract]
Minimum Initial Subscription Amount	$ 10,000
Minimum cost for additional units	5,000
Minimum notice period for units subscription	3 days
Minimum notice period for units redemption	3 days
Minimum amount for partial redemption request	10,000
Minimum holding post partial redemption	10,000
Period of remittance redemption proceeds	15 days
Capital Unit [Line Items]
Redemption and conversion policies	Class 2 Units are subject to a redemption fee equal to 2% of their Net Asset Value if redeemed within six months from their subscription date and a redemption fee equal to 1% of their Net Asset Value if redeemed more than six and less than twelve months from their subscription date.
Maximum applicable redemption fee - holding period, description	within six months from their subscription date
Minimum applicable redemption fee - holding period, description	more than six and less than twelve months from their subscription date
Fees Paid to the Mananger for Redemptions	$ 7,412	$ 5,081
Maximum [Member]
Capital Unit [Line Items]
Redemption fee (in hundredths)	2.00%
Minimum [Member]
Capital Unit [Line Items]
Redemption fee (in hundredths)	1.00%