Commitments and Contingencies (Details) (USD $)	6 Months Ended
Jun. 30, 2013
Commitments Contingencies (Textual)
Failure of Ningbo Keyuan to withhold income taxes payment	$ 50,000
Outstanding letter's of Credit	$ 148,000,000

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant