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INTANGIBLES AND OTHER ASSETS (Tables)
 6 Months Ended
Jun. 30, 2016
Intangibles And Other Assets [Abstract]  
Schedule of intangibles and other assets
 
 
June 30, 2016
 
December 31, 2015
 
 
(In thousands)
Purchased patents and other purchased intangible assets
 
$
4,605

 
$
4,605

Less: Accumulated amortization of purchased patents and other purchased intangibles
 
(4,604
)
 
(4,599
)
Purchased patents and other purchased intangible assets, net
 
1

 
6

Other assets
 
288

 
258

Intangibles and other assets, net
 
$
289

 
$
264