Statements of Changes in Net Assets (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net Assets - beginning of period	$ 3,655	$ 3,821
Creations	1,731
Redemptions
Net investment gain (loss)	(6)	(4)
Net realized gain (loss) from platinum bullion sold to pay expenses		(1)
Net realized gain (loss) from platinum bullion distributed for redemptions
Net change in unrealized gain (loss) on investment in platinum	421	(161)
Net Assets - end of period	$ 5,801	$ 3,655

Change in unrealized gain (loss) on investment in Bullion.

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Amount of net assets (liabilities).

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Amount of realized and unrealized gain (loss) on investment.

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Gain (loss) related to the sale of trust assets (includes, but is not limited to, gold and silver) to pay trust expenses.

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The sum of the realized and unrealized net gain (loss) on trading securities during the period.

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No definition available.

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- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Equity impact of the value of stock bought back by the entity at the exercise price or redemption price.

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