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Summary of Significant Accounting Policies (Share-Based Compensation) (Tables)
 12 Months Ended
Dec. 31, 2015
Summary Of Significant Accounting Policies Share-based Compensation Tables  
Stock-based employee compensation expense

The following table shows the amount of share-based compensation expense included in each line item of the Statement of Operations for the period shown below (in thousands):

      Year Ended December 31,
      2015     2014     2013
Cost of product revenue   $ 19    $ -    $ 1 
Cost of contract revenue     -      28      19 
Research and development expense     282      34      466 
Sales, marketing, general and administrative expense     706      651      1,120 
    $ 1,007    $ 713    $ 1,606