Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

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		Six Months Ended
	June 30,		June 30,
	2017	2016	2017	2016
Stock options	—	275	—	1,311
Restricted stock units	190	97	657	97
Performance based restricted stock awards (A)	—	165	670	845
Total	190	537	1,327	2,253

(A) On March 10, 2017, the Compensation Committee approved grants of performance-based restricted stock units ("PRSUs") to certain employees. The awards will vest only on satisfaction of certain performance criteria during two separate annual performance periods and a portion of the award earned will vest upon satisfaction of a time-based service component. 50% of the awards can be earned by meeting strategic revenue targets in fiscal year 2017 and 50% can be earned by meeting strategic revenue targets in fiscal year 2018. One-half of any PRSUs earned during each performance period will vest upon meeting the performance criteria, and the remaining half will be subject to a further time-based service component and will vest one year after meeting the targets. By meeting the relevant performance criteria set forth in the award agreement, employees can earn 0%, 75%, 100% or 125% of the award during each performance period.  If an employee earns less than 100% of the award for the 2017 performance period, the employee is eligible to earn the remaining portion of the award in fiscal year 2018 if cumulative 2017 and 2018 strategic revenue targets are met in the two years period.  Shares are presented based on attainment of 100% of the performance goals being met. At attainment of 125%, the amount of shares eligible to be earned is 837,500.

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				Six Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Cost of sales	$	40	$	131	$	137	$	177
Research and development	113		285		343		438
Selling, general and administrative	385		776		1,212		1,265
Total	$	538	$	1,192	$	1,692	$	1,880