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Business Segments (Tables)
6 Months Ended
Jun. 30, 2016
Segment Reporting [Abstract]  
Schedule of revenues generated from geographic regions
 
    Three Months Ended     Six Months Ended  
    June 30,     June 30,  
    2016     2015     2016     2015  
                         
United States   $ 6,180     $ 2,526     $ 9,920     $ 5,014  
Brazil     297       928       601       1,654  
Rest of World     427       1,056       1,217       1,965  
    $ 6,904     $ 4,510     $ 11,738     $ 8,633  


Schedule of revenue by product group
 
    Three Months Ended     Six Months Ended  
    June 30,     June 30,  
    2016     2015     2016     2015  
                         
Biometrics   $ 5,443     $ 3,883     $ 8,727     $ 7,731  
Imaging     1,332       522       2,808       696  
DSL royalties     129       105       203       206  
    $ 6,904     $ 4,510     $ 11,738     $ 8,633