A-Mark Precious Metals, Inc. Quarterly report [Sections 13 or 15(d)]

Long-Term Investments - Schedule of Carrying Value and Ownership Percentage of Investment (Details)

v3.25.3

Long-Term Investments - Schedule of Carrying Value and Ownership Percentage of Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 31,700	$ 32,700
Carrying Value	31,659	33,015
Sunshine Minting, Inc.
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 16,564	$ 17,876
Ownership Percentage	44.90%	44.90%
Company A
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 0	$ 283
Ownership Percentage	0.00%	33.30%
Company B
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 2,230	$ 2,194
Ownership Percentage	50.00%	50.00%
Texas Precious Metals, LLC
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 7,673	$ 7,547
Ownership Percentage	12.00%	12.00%
Atkinsons Bullion & Coins
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 3,919	$ 3,733
Ownership Percentage	25.00%	25.00%
Company C
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 15	$ 43
Ownership Percentage	33.30%	33.30%
Company D
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 975	$ 1,009
Ownership Percentage	20.00%	20.00%
Company E
Schedule Of Equity And Cost Method Investments [Line Items]
Carrying Value	$ 283	$ 330
Ownership Percentage	5.00%	5.00%

- Definition

Cost method investment.

+ References

No definition available.

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- Definition

Cost method investment ownership percentage.

+ References

No definition available.

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- Definition

Schedule of equity and cost method investments.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481664/323-10-45-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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- Definition

The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
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