Short-term Borrowings (Details)			0 Months Ended
Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Sep. 28, 2011 Short-term Loan from PRC Bank [Member] USD ($)	Sep. 28, 2011 Short-term Loan from PRC Bank [Member] CNY
Short-term Debt [Line Items]
Short-term borrowings	$ 0	$ 3,177,680	$ 3,177,680	20,000,000
Period of short-term borrowings			from September 29, 2011 to September 28, 2012	from September 29, 2011 to September 28, 2012
Interest rate, per annum			6.89%	6.89%
Certificate of deposit for pledging short-term loan	$ 0	$ 3,600,000	$ 3,600,000

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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- Definition

Description of the short-term debt arrangement, and disclosures pertaining to the underlying arrangements, including repayment terms, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements.

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