Loans - Additional Information (Detail)	3 Months Ended					9 Months Ended
	Sep. 30, 2015 USD ($)		Jun. 30, 2015 USD ($)	Jun. 30, 2015 CNY (¥)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)		Sep. 30, 2014 USD ($)	Sep. 30, 2015 CNY (¥)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Short term loans	$ 53,511,285					$ 53,511,285				$ 16,270,745
Interest Expense, Short-term Borrowings	299,713				$ 577,858	681,866		$ 1,539,249
Restricted cash	28,126,941					28,126,941				14,793,632
Restricted Cash And Cash Equivalents
Debt Instrument [Line Items]
Debt Instrument, Collateral Amount	1.5					1.5			¥ 9
Trust Loan
Debt Instrument [Line Items]
Interest Costs Capitalized	900,000					3,100,000
Secured Debt	39,200,000					39,200,000
Working Capital Loan Contracts Two
Debt Instrument [Line Items]
Short term loans	6,500,000					$ 6,500,000			40,000,000
Debt Instrument, Interest Rate During Period						6.72%
CITIC Bank
Debt Instrument [Line Items]
Short term loans	13,000,000					$ 13,000,000
Repayments of Debt			$ 13,000,000	¥ 80,000,000
Jiang'an Wuhan Branch of Hubei Bank Co
Debt Instrument [Line Items]
Debt Instrument, Maturity Date						May 29, 2014
Short term loans	0	[1]				$ 0	[1]		20,000,000	3,254,149	[1]
Debt Instrument, Interest Rate During Period						6.60%
Chang'an International Trust Co., Ltd | Trust Loan Contract
Debt Instrument [Line Items]
Short term loans	$ 31,500,000					$ 31,500,000			¥ 200,000,000
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	13.50%					13.50%			13.50%
CITIC Bank Wuhan Branch
Debt Instrument [Line Items]
Short term loans	$ 6,295,445	[2]				$ 6,295,445	[2]		¥ 80,000,000	13,016,596	[2]
Restricted cash	3,000,000					3,000,000			18,000,000
Secured Debt	3,000,000					$ 3,000,000
CITIC Bank Wuhan Branch | Interest Rate One
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period						6.90%
CITIC Bank Wuhan Branch | Interest Rate Two
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period						7.20%
CITIC Bank Wuhan Branch | Interest Rate Three
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period						7.20%
CITIC Bank Wuhan Branch | Working Capital Loan Contracts One
Debt Instrument [Line Items]
Debt Instrument, Maturity Date						Apr. 17, 2015
CITIC Bank Wuhan Branch | Working Capital Loan Contracts Two
Debt Instrument [Line Items]
Debt Instrument, Maturity Date						May 06, 2015
Wuhan Kingold
Debt Instrument [Line Items]
Short term loans	25,000,000					$ 25,000,000			155,000,000
Minsheng Bank Trust Fund
Debt Instrument [Line Items]
Short term loans	47,215,840	[3]				$ 47,215,840	[3]		300,000,000	$ 0	[3]
Debt Instrument, Interest Rate During Period						12.50%
Restricted cash	500,000					$ 500,000			3,000,000
Secured Debt	$ 68,000,000					$ 68,000,000			¥ 431,800,000

[1] Loan payable to Bank of Hubei, Wuhan Jiang’an Branch with an aggregate amount of RMB 20 million (approximately $3.3 million) originated on August 26, 2014, with a maturity date of August 26, 2015. The annual interest rate is 6.6%. This loan is secured by the Company’s building and land use rights. The loans were paid off upon maturity.

[2] Loans payable to CITIC Bank Wuhan Branch with an aggregate amount of RMB 80 million (approximately $13.0 million) consists of three working capital loan contracts originated on April 17, 2014, May 6, 2014 and May 29, 2014, with maturity dates of April 17, 2015, May 6, 2015 and May 29, 2015, respectively. The annual interest rate is 6.9%, 7.2% and 7.2%, respectively. All the loans from CITIC Bank Wuhan Branch were secured by restricted cash of RMB 18 million (approximately $3.0 million). The loan is also secured by 160 kilograms of Au9999 gold, approximately $3 million of which was pledged by Wuhan Kingold. In the second quarter of 2015, Wuhan Kingold paid off loans amounting to RMB 80 million (approximately $13.0 million) on their maturity dates. New loans with an aggregate amount of RMB 40 million (approximately $6.5 million) consists of two working capital loan contracts originated on May 29, 2015 and June 1, 2015, with maturity dates of March 29, 2016 and March 1, 2016, respectively. The annual interest rate of each such loan is 6.72%. All the loans from CITIC Bank Wuhan Branch were secured by restricted cash of RMB 9 million (approximately $1.5 million). In addition, the Company's subsidiary Wuhan Kingold and Mr. Zhihong Jia, Chairman and Chief Executive Officer of the Company, separately signed a maximum guarantee agreement with the bank, to provide a maximum RMB 155 million (approximately $25 million) guarantee for any bank borrowings that Wuhan Kingold borrows from CITIC Bank during May 25, 2015 through May 25, 2016.

[3] Loan payable to Minsheng Bank Trust Fund, with an aggregate amount of RMB 300 million (approximately $47.1 million) originated on September 17, 2015, with a maturity date of September 25, 2016. The annual interest rate is 12.5%. The loan is to be used for the Company’s working capital. Wuhan Kingold pledged 1,877.4 kilograms of gold valued at RMB 431.8 million (approximately $68 million) at September 30, 2015 to secure this loan.The Company was also required to pledge RMB 3 million (approximately $0.5 million) restricted cash with Mingsheng Bank as collateral. In addition, the Company’s CEO, Mr. Zhihong Jia and his wife, Ms. Lili Huang, jointly signed a guarantee agreement with the bank, to provide a guarantee for the loan.