Statements of Assets and Liabilities (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Investment in Bullion at cost	$ 351,430	$ 346,429
Common stock, shares authorized	Unlimited	Unlimited
Common stock, par value
Common stock, shares issued	5,700,000	5,600,000
Common stock, shares outstanding	5,700,000	5,600,000
Net asset values per Share	$ 63.03	$ 64.63
Gold [Member]
Investment in Bullion at cost	$ 200,683	$ 196,806
Silver [Member]
Investment in Bullion at cost	102,655	103,311
Platinum [Member]
Investment in Bullion at cost	22,888	23,345
Palladium [Member]
Investment in Bullion at cost	$ 25,204	$ 22,967

Face amount per share of no-par value common stock.

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