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

Annual report pursuant to Section 13 and 15(d)

Financing Agreements (Narrative) (Details)

Financing Agreements (Narrative) (Details) (USD $)	12 Months Ended					12 Months Ended
Financing Agreements (Narrative) (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2014 Trading credit facility	Jun. 30, 2013 Trading credit facility	Jun. 30, 2014 Trading credit facility Line of credit	Jun. 30, 2013 Trading credit facility Line of credit	Jun. 30, 2012 Trading credit facility Line of credit	Jun. 30, 2014 Trading credit facility A-Mark Line of credit	Jun. 30, 2013 Trading credit facility A-Mark Line of credit	Jun. 30, 2014 Trading credit facility Certain lender common to SNI and A-Mark A-Mark Line of credit	Jun. 30, 2014 Trading credit facility Certain lender common to SNI and A-Mark SNI and A-Mark Line of credit	Mar. 31, 2014 Trading credit facility Certain lender common to SNI and A-Mark SNI and A-Mark Line of credit	Jun. 30, 2014 Trading credit facility Certain lender common to SNI and A-Mark SNI Line of credit	Mar. 31, 2014 Trading credit facility Certain lender common to SNI and A-Mark SNI Line of credit	Jun. 30, 2014 Collectibles credit facility Certain lender common to SNI and A-Mark SNI Line of credit	Jun. 30, 2013 Collectibles credit facility Certain lender common to SNI and A-Mark SNI Line of credit
Schedule Of Financing Arrangements [Line Items]
Line of credit, maximum borrowing capacity									$ 170,000,000		$ 20,000,000	$ 25,500,000.0	$ 23,000,000	$ 7,500,000.0	$ 5,000,000
Variable rate basis									one-month LIBOR
Credit facility, interest rate at period end									0.15%	0.19%
Borrowings due on demand									135,200,000	95,000,000
Letters of credit outstanding				0	9,000,000
Credit facility, remaining borrowing capacity									34,800,000	66,000,000						3,300,000	0
Credit facility, minimum required tangible net worth									25,000,000
Tangible net worth									41,600,000
Line of credit	135,200,000	95,000,000									16,100,000	22,200,000				6,100,000
Interest expense, notes payable						3,300,000	3,300,000	4,000,000
Percentage of total expense recognized	84.40%	94.90%	94.10%
Effective rate of interest	3.12%	3.28%	3.32%
Liability on borrowed metals	8,709,000	20,117,000
Product financing obligation	$ 24,610,000	$ 38,554,000