Statements of Assets and Liabilities (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Investment Company [Abstract]
Investment in palladium at cost	$ 224,166	$ 170,040
Common stock, shares authorized	Unlimited	Unlimited
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	1,625,000	1,675,000
Common stock, shares outstanding	1,625,000	1,675,000
Net asset value per share	$ 219.22	$ 179.39

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

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Cost of the investment.

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Net asset value per share or per unit of investments in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes fair value disclosure.

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