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Debt (Details)
$ in Thousands, € in Millions
Dec. 31, 2015
EUR (€)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Debt Instrument      
Long Term Debt   $ 40,295  
Total debt and capital leases   41,099 $ 43,700
Less current portion of long-term debt and capital leases   10,934 7,594
Long-term debt and capital leases, net of current portion   30,165 36,106
Mortgage Payable - Due January 2016 | East West Bank      
Debt Instrument      
Long Term Debt   3,725 3,887
Mortgage Payable - Due September 2016 | East West Bank      
Debt Instrument      
Long Term Debt   2,211 2,289
Equipment Loan - Due April 2017 | East West Bank      
Debt Instrument      
Long Term Debt   1,700 2,923
Line of Credit Facility - Due January 2019 | East West Bank      
Debt Instrument      
Long Term Debt   4,748  
Mortgage Payable - Due April 2021 | Cathay Bank      
Debt Instrument      
Long Term Debt   4,460 4,549
Acquisition Loan - Due April 2019 | Cathay Bank      
Debt Instrument      
Long Term Debt   19,012 20,870
French Government Loan - Due March 2018 | Seine-Normandie Water Agency      
Debt Instrument      
Long Term Debt   46  
French Government Loan - Due June 2020 | Seine-Normandie Water Agency      
Debt Instrument      
Long Term Debt   128  
French Government Loan - Due July 2021 | Seine-Normandie Water Agency      
Debt Instrument      
Long Term Debt   325  
Note Payable To Merck      
Debt Instrument      
Long Term Debt € 3.6 3,942 8,160
Capital Lease Obligations      
Debt Instrument      
Total debt and capital leases   $ 802 $ 1,022