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Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Equity awards granted during the period,Grants in Period, Gross [Table Text Block]
The following table summarizes awards granted under the Radisys Corporation 2007 and LTIP Stock Plans (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2013
  
2012
 
2013
  
2012
Stock options
1,253

 
391

 
1,746

 
464

Restricted stock units
75

 
265

 
82

 
342

Performance based restricted stock units
95

 
1,050

 
131

 
1,050

Total
1,423

 
1,706

 
1,959

 
1,856

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Stock-based compensation was recognized and allocated as follows (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2013
  
2012
 
2013
  
2012
Cost of sales
$
167

 
$
107

 
$
408

 
$
(98
)
Research and development
361

 
284

 
844

 
315

Selling, general and administrative
1,111

 
587

 
2,509

 
177

Total
$
1,639

 
$
978

 
$
3,761

 
$
394