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Related Party Transactions (Additional Information) (Detail) (Fuchao Li [Member], USD $)	3 Months Ended
	Mar. 31, 2013
Fuchao Li [Member]
Related Party Transaction [Line Items]
Repayment of loan to related party	$ 214,150

The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.

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