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

Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies Customer Concentrations (Details)

Summary of Significant Accounting Policies Customer Concentrations (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended			12 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2014	Jun. 30, 2013	Mar. 31, 2014 Revenue Customer concentrations	Mar. 31, 2013 Revenue Customer concentrations	Mar. 31, 2014 Revenue Customer concentrations	Mar. 31, 2013 Revenue Customer concentrations	Mar. 31, 2014 Accounts receivable Customer concentrations	Jun. 30, 2013 Accounts receivable Customer concentrations	Mar. 31, 2014 Secured loans Customer concentrations	Jun. 30, 2013 Secured loans Customer concentrations	Mar. 31, 2014 Royal Canadian Mint Revenue Customer concentrations	Mar. 31, 2013 Royal Canadian Mint Revenue Customer concentrations	Mar. 31, 2014 Royal Canadian Mint Revenue Customer concentrations	Mar. 31, 2013 Royal Canadian Mint Revenue Customer concentrations	Mar. 31, 2014 Royal Canadian Mint Accounts receivable Customer concentrations	Jun. 30, 2013 Royal Canadian Mint Accounts receivable Customer concentrations	Mar. 31, 2014 HSBC Bank USA Revenue Customer concentrations	Mar. 31, 2013 HSBC Bank USA Revenue Customer concentrations	Mar. 31, 2014 HSBC Bank USA Revenue Customer concentrations	Mar. 31, 2013 HSBC Bank USA Revenue Customer concentrations	Mar. 31, 2014 Johnson Matthey Revenue Customer concentrations	Mar. 31, 2013 Johnson Matthey Revenue Customer concentrations	Mar. 31, 2014 Johnson Matthey Revenue Customer concentrations	Mar. 31, 2013 Johnson Matthey Revenue Customer concentrations	Mar. 31, 2014 United States Mint Accounts receivable Customer concentrations	Jun. 30, 2013 United States Mint Accounts receivable Customer concentrations	Mar. 31, 2014 Customer A Secured loans Customer concentrations	Jun. 30, 2013 Customer A Secured loans Customer concentrations	Mar. 31, 2014 Customer B Secured loans Customer concentrations	Jun. 30, 2013 Customer B Secured loans Customer concentrations	Mar. 31, 2014 Customer C Secured loans Customer concentrations	Jun. 30, 2013 Customer C Secured loans Customer concentrations	Mar. 31, 2014 Major Customers Revenue Customer concentrations	Mar. 31, 2013 Major Customers Revenue Customer concentrations	Mar. 31, 2014 Major Customers Revenue Customer concentrations	Mar. 31, 2013 Major Customers Revenue Customer concentrations	Mar. 31, 2014 Major Customers Accounts receivable Customer concentrations	Jun. 30, 2013 Major Customers Accounts receivable Customer concentrations	Mar. 31, 2014 Major Customers Secured loans Customer concentrations	Jun. 30, 2013 Major Customers Secured loans Customer concentrations	Mar. 31, 2014 Secured loans	Jun. 30, 2013 Secured loans
Concentration Risk [Line Items]
Total revenue			$ 1,581,547	$ 1,833,454	$ 4,566,179	$ 5,150,050					$ 118,442	$ 231,272	$ 323,728	$ 497,646			$ 454,899	$ 301,644	$ 1,160,592	$ 559,611	$ 11,526	$ 39,988	$ 68,123	$ 759,214									$ 584,867	$ 572,904	$ 1,552,443	$ 1,816,471
Concentration risk, percentage			100.00%	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%	7.50%	12.60%	0.00%	0.00%	21.40%	14.60%	28.80%	16.50%	25.40%	10.90%	0.70%	2.10%	0.00%	0.00%	32.00%	74.90%	0.00%	44.40%	7.40%	10.30%	13.10%	7.60%	37.00%	31.20%	34.00%	35.30%	53.40%	89.50%	20.50%	62.30%
Trading segment secured loans	31,861	35,585																									0	15,800	2,346	3,659	4,200	2,700							6,546	22,159	31,861	35,585
Trading segment accounts receivable							$ 31,957	$ 59,028							$ 6,837	$ 8,593									$ 10,234	$ 44,185											$ 17,071	$ 52,778

- Definition

An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money within one year from the balance sheet date (or the normal operating cycle, whichever is longer), net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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