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STOCK-BASED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
The following table summarizes stock-based compensation expense incurred under the 2008 Plan and included in our accompanying unaudited interim condensed consolidated statements of earnings:
 
(in thousands)
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
 
 
2017
 
2016
 
2017
 
2016
 
Cost of sales
 
$
26
 
$
24
 
$
49
 
$
14
 
Research and development
 
 
168
 
 
22
 
 
307
 
 
49
 
Selling, general, and administrative
 
 
1,585
 
 
2,171
 
 
2,794
 
 
3,259
 
 
 
$
1,779
 
$
2,217
 
$
3,150
 
$
3,322
 
Schedule of Share-based Compansation, Stock Option And Restricted Stock, Activity
A summary of stock option and restricted stock activity under the 2008 Plan during the six months ended June 30, 2017 and 2016 is presented below:
 
(in thousands)
 
Options
 
RSAs
 
Outstanding December 31, 2015
 
 
474
 
 
63
 
Granted
 
 
273
 
 
42
 
Options Exercised/RSAs Vested
 
 
(54)
 
 
(15)
 
Forfeited
 
 
(50)
 
 
(12)
 
Outstanding June 30, 2016
 
 
643
 
 
78
 
 
 
 
 
 
 
 
 
Outstanding December 31, 2016
 
 
578
 
 
63
 
Granted
 
 
185
 
 
50
 
Options Exercised/RSAs Vested
 
 
(2)
 
 
(27)
(1)
Forfeited
 
 
(3)
 
 
-
 
Outstanding June 30, 2017
 
 
758
 
 
86
 
 
(1) Includes five thousand shares purchased from employees to cover employee income taxes related to income earned upon vesting of restricted stock. The shares purchased are held in treasury and the $259 thousand total purchase price for the shares is included in Treasury stock in our accompanying unaudited interim condensed consolidated balance sheets.