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

Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets (Intangible Assets) (Details)

Goodwill and Intangible Assets (Intangible Assets) (Details) (USD $)	9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2014
Indefinite-lived Intangible Assets [Line Items]
Gross carrying amount - finite lived intangible	$ 8,396,000		$ 8,396,000
Accumulated amortization	(5,931,000)		(5,643,000)
Net book value - finite lived intangible	2,465,000		2,753,000
Amortization expense related to intangible assets	300,000us-gaap_AmortizationOfIntangibleAssets	300,000us-gaap_AmortizationOfIntangibleAssets
Existing customer relationships
Indefinite-lived Intangible Assets [Line Items]
Gross carrying amount - finite lived intangible	5,747,000		5,747,000
Accumulated amortization	(3,736,000)		(3,448,000)
Net book value - finite lived intangible	2,011,000		2,299,000
Non-compete and other
Indefinite-lived Intangible Assets [Line Items]
Estimated useful lives	4 years
Gross carrying amount - finite lived intangible	2,000,000		2,000,000
Accumulated amortization	(2,000,000)		(2,000,000)
Net book value - finite lived intangible	0		0
Employment agreement
Indefinite-lived Intangible Assets [Line Items]
Estimated useful lives	3 years
Gross carrying amount - finite lived intangible	195,000		195,000
Accumulated amortization	(195,000)		(195,000)
Net book value - finite lived intangible	0		0
Purchased intangibles subject to amortization
Indefinite-lived Intangible Assets [Line Items]
Gross carrying amount - finite lived intangible	7,942,000		7,942,000
Accumulated amortization	(5,931,000)		(5,643,000)
Net book value - finite lived intangible	2,011,000		2,299,000
Trade-name
Indefinite-lived Intangible Assets [Line Items]
Gross carrying amount	454,000		454,000
Accumulated amortization	0		0
Net book value	$ 454,000		$ 454,000
Minimum
Indefinite-lived Intangible Assets [Line Items]
Estimated useful lives	4 years
Minimum \| Existing customer relationships
Indefinite-lived Intangible Assets [Line Items]
Estimated useful lives	5 years
Maximum
Indefinite-lived Intangible Assets [Line Items]
Estimated useful lives	15 years
Maximum \| Existing customer relationships
Indefinite-lived Intangible Assets [Line Items]
Estimated useful lives	15 years