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STOCK-BASED COMPENSATION
 9 Months Ended
Sep. 30, 2015
STOCK-BASED COMPENSATION  
STOCK-BASED COMPENSATION

 

NOTE 5.  STOCK-BASED COMPENSATION

 

The following table presents stock-based compensation expense recognized for stock options, stock awards, restricted stock units and the Company’s employee stock purchase program (ESPP) in the Company’s Condensed Consolidated Statements of Operations (in thousands):

 

 

 

Three Months Ended September 30,

 

Nine Months Ended September 30,

 

 

 

2015

 

2014

 

2015

 

2014

 

 

 

 

 

 

 

 

 

 

 

Cost of sales

 

$
4 

 

$

—

 

$
9 

 

$
13 

 

Research and development expense

 
37 

 
70 

 
219 

 
174 

 

Selling, general and administrative expense

 
3,590 

 
2,257 

 
9,469 

 
6,310 

 

 

 

 

 

 

 

 

 

 

 

Total

 

$
3,631 

 

$
2,327 

 

$
9,697 

 

$
6,497 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

At September 30, 2015, the Company had $22.7 million of total unrecognized compensation expense, net of estimated forfeitures, related to stock option grants and restricted stock units that will be recognized over an average vesting period of 2 years.