Note 2 - Summary of Significant Accounting Policies (Details) - Activity in Gold Bullion (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended
	Mar. 31, 2015 oz		Mar. 31, 2014 oz		Dec. 31, 2014 oz
Activity in Gold Bullion [Abstract]
Beginning balance (in Ounces)	5,182,200		5,220,500		5,220,500
Beginning balance, average cost	$ 6,254,868	[1]	$ 6,272,422		$ 6,272,422
Beginning balance, fair value	6,214,710	[1],[2]	6,272,422		6,272,422
Gold bullion contributed (in Ounces)	331,900		155,200
Gold bullion contributed, average cost	412,281		202,435
Gold bullion contributed, fair value	412,281		202,435
Gold bullion distributed (in Ounces)	(208,500)		(61,100)
Gold bullion distributed, average cost	(252,031)		(73,501)
Gold bullion distributed, fair value	(251,695)		(77,329)
Gold bullion distributed, realized gain (loss)	(336)		3,828
Gold bullion sold to pay expenses (in Ounces)	(3,300)		(3,200)
Gold bullion sold to pay expenses, average cost	(3,954)		(3,833)
Gold bullion sold to pay expenses, fair value	(3,987)		(4,067)
Gold bullion sold to pay expenses, realized gain (loss)	33		234	[3]
Net realized gain (loss)	(303)		4,062	[3]	14,369	[4]
Net change in unrealized appreciation/depreciation	(77,196)		463,444	[3]	(40,158)	[4]
Ending balance (in Ounces)	5,302,300		5,311,400		5,182,200
Ending balance, average cost	6,411,164		6,397,523		6,254,868	[1]
Ending balance, fair value	6,293,810	[2]	6,860,967		6,214,710	[1],[2]
Ending balance, realized gain (loss)	$ (303)		$ 4,062	[3]	$ 14,369	[4]

[1] Previously reported as "Balance Sheets." Please refer to Note 2A.

[2] Cost of investment in gold bullion: $6,411,164 and $6,254,868, respectively.

[3] Previously reported as "Income Statements." Please refer to Note 2A.

[4] Previously reported as "Statements of Changes in Shareholders' Equity (Deficit)." Please refer to Note 2A.