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Subsequent Event (Details) (Subsequent Event [Member], USD $)
 12 Months Ended
Dec. 31, 2013
Industrial & Commercial Bank of China [Member]
  
Subsequent Event [Line Items]  
Line of credit facility, maximum borrowing capacity $ 24,500,000
Working capital loans 6,500,000
Additional line of credit facility, borrowing capacity 18,000,000
Shanghai Pudong Development Bank [Member]
  
Subsequent Event [Line Items]  
Line of credit facility, maximum borrowing capacity $ 3,300,000
Line of credit facility, initiation date Mar. 03, 2014
Line of credit facility, expiration date Jan. 12, 2015