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

Annual report pursuant to Section 13 and 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

Description of Business (Details)

v3.2.0.727

Description of Business (Details)				12 Months Ended
Description of Business (Details)	Mar. 19, 2014 shares	Mar. 19, 2014 shares	Mar. 14, 2014 shares	Jun. 30, 2015 USD ($) $ / shares shares	Jun. 30, 2014 $ / shares shares	Mar. 17, 2014 shares	Feb. 12, 2014 $ / shares
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Common stock, par value (usd per share) \| $ / shares				$ 0.01	$ 0.01		$ 0.01
Common stock, shares outstanding				6,973,549	6,962,742	7,402,664
Cancellation of shares by Former Parent, shares			71,922
Common stock exchange ratio, numerator				1
Common stock exchange ratio, denominator				4.1717
Shares granted (in shares)				3,000	0
Restricted Stock Units (RSUs)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Shares granted (in shares)				0
Awards assumed from SGI spin-off
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Shares granted (in shares)	249,846
Awards assumed from SGI spin-off \| Restricted Stock Units (RSUs)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Grants during the period (shares)		130,646
Shares granted (in shares)	130,646
Awards assumed from SGI spin-off \| Stock Appreciation Rights (SARs)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Grants during the period (shares)	8,990	8,990
Former Parent SGI Plans
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Secondment fee payable \| $				$ 150,000
Percentage of professional working time, maximum				20.00%

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