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Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Significant Accounting Policies [Abstract]
Annualized rate of Sponsors Fee	0.60%
Sponsor Fees	$ 1,201,105	$ 1,168,126	$ 1,402,637
Fees payable to Sponsor	$ 116,994	$ 103,116

- Definition

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details