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Acquisitions and Joint Ventures (Details Textual) (USD $)
3 Months Ended 1 Months Ended 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Feb. 29, 2012
Ningbo [Member]
Ningbo Joint Venture [Member]
Mar. 31, 2014
Ningbo [Member]
Ningbo Joint Venture [Member]
Jun. 30, 2013
Ningbo [Member]
Ningbo Joint Venture [Member]
Dec. 31, 2013
Ningbo [Member]
Ningbo Joint Venture [Member]
Business Acquisition [Line Items]            
Ownership Percentage Of Subsidiary     64.00%      
Noncontrolling Interest in Joint Ventures     $ 12,100,000      
Additional Ownership Percentage In Subsidiary       6.00% 6.00%  
Equity Method Investment Agreed Contribution Amount         800,000  
Payments to Acquire Equity Method Investments 760,000 0   800,000    
Equity Method Investment Accrual Amount           800,000
Income (Loss) from Equity Method Investments $ (159,000) $ 0   $ 100,000