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Geographic Sales Information
 12 Months Ended
Dec. 31, 2016
Segment Reporting [Abstract]  
Geographic Sales Information

13. Geographic Sales Information

 

The United States was the only country to contribute more than 10 percent of total revenues in each fiscal year. The Company’s revenues are substantially denominated in U.S. dollars and are summarized geographically as follows:

 

    Year ended December 31,  
    2016     2015     2014  
United States   $ 31,838     $ 39,563     $ 39,837  
All other countries     16,799       18,233       18,072  
Total   $ 48,637     $ 57,796     $ 57,909