Note 2 - Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2015

Accounting Policies [Abstract]

Activity in Silver Bullion [Table Text Block]

Three Months Ended September 30, 2015	Ounces			Average Cost			Fair Value			Realized Gain (Loss)
Beginning balance		325,342.6		$	6,217,768		$	5,107,880		$	—
Silver bullion contributed		5,728.5			85,929			85,929			—
Silver bullion distributed		(12,120.9	)		(231,025	)		(179,177	)		(51,848	)
Silver bullion sold to pay expenses		(420.6	)		(8,025	)		(6,312	)		(1,713	)
Net realized loss		—			—			(53,561	)		—
Net change in unrealized appreciation/depreciation		—			—			(288,300	)		—
Ending balance		318,529.6		$	6,064,647		$	4,666,459		$	(53,561	)

Three Months Ended September 30, 2014	Ounces			Average Cost			Fair Value			Realized Gain (Loss)
Beginning balance		322,872.9		$	6,310,696		$	6,738,358		$	—
Silver bullion contributed		30,743.4			581,957			581,957			—
Silver bullion distributed		(3,118.6	)		(60,967	)		(62,616	)		1,649
Silver bullion sold to pay expenses		(411.3	)		(8,041	)		(8,297	)		256
Net realized gain		—			—			1,905			—
Net change in unrealized appreciation/depreciation		—			—			(1,261,329	)		—
Ending balance		350,086.4		$	6,823,645		$	5,989,978		$	1,905

Nine Months Ended September 30, 2015	Ounces			Average Cost			Fair Value			Realized Gain (Loss)
Beginning balance		329,564.2		$	6,386,750		$	5,263,140		$	—
Silver bullion contributed		41,154.0			664,967			664,967			—
Silver bullion distributed		(50,950.4	)		(963,268	)		(825,652	)		(137,616	)
Silver bullion sold to pay expenses		(1,238.2	)		(23,802	)		(19,777	)		(4,025	)
Net realized loss		—			—			(141,641	)		—
Net change in unrealized appreciation/depreciation		—			—			(274,578	)		—
Ending balance		318,529.6		$	6,064,647		$	4,666,459		$	(141,641	)

Nine Months Ended September 30, 2014	Ounces			Average Cost			Fair Value			Realized Gain (Loss)
Beginning balance		320,177.8		$	6,243,467		$	6,243,467		$	—
Silver bullion contributed		60,841.0			1,184,514			1,184,514			—
Silver bullion distributed		(29,693.0	)		(580,118	)		(597,071	)		16,953
Silver bullion sold to pay expenses		(1,239.4	)		(24,218	)		(24,582	)		364
Net realized gain		—			—			17,317			—
Net change in unrealized appreciation/depreciation		—			—			(833,667	)		—
Ending balance		350,086.4		$	6,823,645		$	5,989,978		$	17,317