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Stock-Based Compensation and Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2013
Compensation expense recognized for issuance of warrants, stock options, restricted stock grants and stock bonuses

 

 

 

 

 

Three Months Ended

 

March 31, 

 

 

 

2013 

2012 

 

 

 

Stock-based compensation costs included in:

 

 

Cost of sales             

$              2             

$              2             

Sales and marketing expenses             

              9             

              11             

Research and development expenses             

              9             

              13             

General and administrative expenses             

              139             

              135             

 

 

 

Total stock-based compensation expenses             

$              159             

$              161             

 

 

 

 

Values set forth calculated using weighted average assumptions

The values set forth above were calculated using the following weighted average assumptions:

 

 

 

 

 

Three Months Ended

 

March 31, 

 

 

 

2013 

2012 

 

 

 

Expected life             

              4.26 years             

              4.18 years             

Dividend yield             

              0              %

              0              %

Expected volatility             

              94.6              %

              87.4              %

Risk-free interest rate             

              0.6              %

              0.5 to 0.8              %