Unaudited Condensed Statements of Financial Condition (Footnote Amounts) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011
Unaudited Condensed Statements of Financial Condition [Abstract]
Market value of investment in gold	$ 63,508,545	$ 64,684,848
Common stock, par value
Common stock, share authorized	Unlimited	Unlimited
Common stock, shares issued	414,700,000	406,800,000
Common stock, shares outstanding	414,700,000	406,800,000