A-Mark Precious Metals, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Financing Agreements (Narrative) (Details)

v2.4.1.9

Financing Agreements (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended	12 Months Ended
Financing Agreements (Narrative) (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Sep. 12, 2014	Jun. 30, 2014
Schedule Of Financing Arrangements [Line Items]
Interest expense, notes payable	$ 900,000us-gaap_InterestExpenseDebt	$ 900,000us-gaap_InterestExpenseDebt
Percentage of total expense recognized	80.80%	85.90%	85.20%	85.80%
Effective rate of interest	2.82%	3.16%	2.94%	3.19%
Liability on borrowed metals	6,495,000amrk_LiabilityOnBorrowedMetals		6,495,000amrk_LiabilityOnBorrowedMetals			8,709,000amrk_LiabilityOnBorrowedMetals
Product financing obligation	48,114,000		48,114,000			24,610,000
Sixth Participant \| Line of credit
Schedule Of Financing Arrangements [Line Items]
Line of credit, maximum borrowing capacity					50,000,000.0
Trading credit facility \| Line of credit
Schedule Of Financing Arrangements [Line Items]
Interest expense, notes payable			2,700,000	2,500,000
Trading credit facility \| A-Mark \| Line of credit
Schedule Of Financing Arrangements [Line Items]
Line of credit, maximum borrowing capacity	220,000,000		220,000,000
Variable rate basis			one-month LIBOR
Credit facility, interest rate at period end	0.18%		0.18%			0.15%
Borrowings due on demand	132,800,000		132,800,000			135,200,000
Credit facility, remaining borrowing capacity	17,000,000		17,000,000			14,400,000
Credit facility, minimum required tangible net worth					35,000,000	25,000,000
Collectibles credit facility \| Certain lender common to SNI and A-Mark \| SNI \| Line of credit
Schedule Of Financing Arrangements [Line Items]
Credit facility, remaining borrowing capacity	$ 0		$ 0			$ 3,300,000

- Definition

Interest Expense, Debt, as Percentage of Total Expense Recognized

+ References

No definition available.

+ Details

Name:	amrk_InterestExpenseDebtasPercentageofTotalExpenseRecognized
Namespace Prefix:	amrk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Libility on precious metals from third parties, as of the balance sheet date that must be repaid within one year (or the normal operating cycle, if longer).

+ References

No definition available.

+ Details

Name:	amrk_LiabilityOnBorrowedMetals
Namespace Prefix:	amrk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

LIBOR Interest Rate

+ References

No definition available.

+ Details

Name:	amrk_LiborInterestRate
Namespace Prefix:	amrk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Covenants, Minimum Tangible Net Worth Required

+ References

No definition available.

+ Details

Name:	amrk_LineOfCreditFacilityCovenantsMinimumTangibleNetWorthRequired
Namespace Prefix:	amrk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Obligation Under Product Financing Agreement - amount required to repurchase outstanding inventory under product financing agreement with a third party for the sale of gold and silver. Such agreement allows the Company to repurchase outstanding inventory at an agreed-upon price based on the spot price on the repurchase date.

+ References

No definition available.

+ Details

Name:	amrk_ObligationUnderProductFinancingAgreement
Namespace Prefix:	amrk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	amrk_ScheduleOfFinancingArrangementsLineItems
Namespace Prefix:	amrk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.8)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_InterestExpenseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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