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Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Schedule of Stockholders Equity [Table Text Block]

		Balance at December 31, 2013				ASU 2013-08 Transition Adjustment				Balance at January 1, 2014
Redeemable capital Shares		$	6,240,747			$	(6,240,747	)		$	—
Shareholders' equity			—				6,240,747				6,240,747

Activity in Silver Bullion [Table Text Block]

		Ounces				Average Cost				Fair Value				Realized Gain (Loss)
Beginning balance			328,342.1			$	6,420,930			$	6,556,992			$	—
Silver bullion contributed			11,434.5				220,207				220,207				—
Silver bullion distributed			(16,472.5	)			(322,012	)			(327,566	)			5,554
Silver bullion sold			(431.2	)			(8,429	)			(8,282	)			(147	)
Net realized gain on silver bullion			—				—				5,407				—
Net change in unrealized appreciation/depreciation on investment in silver bullion			—				—				291,600				—
Ending balance			322,872.9			$	6,310,696			$	6,738,358			$	5,407

		Ounces				Average Cost				Fair Value				Realized Gain (Loss)
Beginning balance			320,177.8			$	6,243,467			$	6,243,467			$	—
Silver bullion contributed			30,097.6				602,557				602,557				—
Silver bullion distributed			(26,574.4	)			(519,151	)			(534,455	)			15,304
Silver bullion sold			(828.1	)			(16,177	)			(16,285	)			108
Net realized gain on silver bullion			—				—				15,412				—
Net change in unrealized appreciation/depreciation on investment in silver bullion			—				—				427,662				—
Ending balance			322,872.9			$	6,310,696			$	6,738,358			$	15,412

		Ounces				Average Cost				Fair Value				Realized Gain (Loss)
Beginning balance			344,128.5			$	8,828,650			$	9,855,840			$	—
Silver contributed			11,633.5				254,624				254,624				—
Silver distributed			(36,838.5	)			(943,933	)			(852,262	)			(91,671	)
Silver sold			(442.2	)			(11,339	)			(10,976	)			(363	)
Adjustment to silver bullion inventory(a)			—				(2,121,444	)			—				—
Adjustment for realized loss			—				—				(92,034	)			—
Adjustment for unrealized loss on silver bullion			—				—				(3,148,634	)			—
Ending balance			318,481.3			$	6,006,558			$	6,006,558			$	(92,034	)

		Ounces				Average Cost				Fair Value				Realized Gain (Loss)
Beginning balance			324,239.1			$	8,135,003			$	9,710,962			$	—
Silver contributed			48,864.2				1,390,292				1,390,292				—
Silver distributed			(53,760.2	)			(1,375,301	)			(1,376,920	)			1,619
Silver sold			(861.8	)			(21,992	)			(23,603	)			1,611
Adjustment to silver bullion inventory(a)			—				(2,121,444	)			—				—
Adjustment for realized gain			—				—				3,230				—
Adjustment for unrealized loss on silver bullion			—				—				(3,697,403	)			—
Ending balance			318,481.3			$	6,006,558			$	6,006,558			$	3,230

Schedule of Capital Units [Table Text Block]

		Six Months Ended June 30, 2014
		Shares				Amount
Shares issued			31,300			$	602,557
Shares redeemed			(27,650	)			(534,455	)
Net increase (decrease)			3,650			$	68,102

Temporary Equity [Table Text Block]

		Year Ended December 31, 2013
		Shares				Amount
Beginning balance			335,000			$	9,706,654
Shares issued			85,750				2,096,484
Shares redeemed			(88,250	)			(2,031,644	)
Redemption value adjustment			—				(3,530,747	)
Ending balance			332,500			$	6,240,747

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