ACCOUNTING POLICIES (Details 3) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Fixed assets
Restricted cash	$ 1,580,000	$ 1,580,000		$ 1,580,000		$ 1,580,000	$ 1,580,000
Depreciation and amortization
Total depreciation and amortization, including internal-use software and website development		4,701,000	3,307,000	12,806,000	10,833,000	16,495,000		14,907,000
Land acquisition	11,000,000
Additional Disclosure
Impairments of long-lived assets		0					0
Precious Metals [Abstract]
Precious metals	8,926,000	8,926,000		8,926,000		8,926,000	9,678,000
Unrealized loss on investment in precious metals		(752,000)	(93,000)	(752,000)	(475,000)	(1,734,000)		(475,000)
Goodwill
Goodwill	2,784,000	2,784,000		2,784,000		2,784,000	2,784,000
Impairments of goodwill				0			0
Gold
Precious Metals [Abstract]
Precious metals	4,000,000	4,000,000		4,000,000		4,000,000	4,000,000
Silver
Precious Metals [Abstract]
Precious metals	4,900,000	4,900,000		4,900,000		4,900,000	5,700,000
Cost of goods sold — direct
Depreciation and amortization
Total depreciation and amortization, including internal-use software and website development		61,000	87,000	217,000	292,000
Technology
Depreciation and amortization
Total depreciation and amortization, including internal-use software and website development		4,356,000	2,937,000	11,752,000	9,595,000
General and administrative
Depreciation and amortization
Total depreciation and amortization, including internal-use software and website development		284,000	283,000	837,000	946,000
Computer software | Minimum
Depreciation and amortization
Life				2 years
Computer software | Maximum
Depreciation and amortization
Life				4 years
Computer hardware | Minimum
Depreciation and amortization
Life				3 years
Computer hardware | Maximum
Depreciation and amortization
Life				4 years
Furniture and equipment | Minimum
Depreciation and amortization
Life				3 years
Furniture and equipment | Maximum
Depreciation and amortization
Life				5 years
Internal-use software and website development
Additional Disclosure
Capitalized costs		3,600,000	3,300,000	10,700,000	8,100,000
Amortization of capitalized costs		$ 2,700,000	$ 1,800,000	$ 7,600,000	$ 5,900,000
Internal-use software and website development | Minimum
Depreciation and amortization
Life				2 years
Internal-use software and website development | Maximum
Depreciation and amortization
Life				3 years