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GOODWILL AND INTANGIBLE ASSETS (Tables)
 6 Months Ended
Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of intangible assets
The Company does not believe there is any significant residual value associated with the following intangible assets:
 
June 30, 2014
 
December 31, 2013
 
Gross
 
Accumulated
Amortization
 
Net
 
Gross
 
Accumulated
Amortization
 
Net
 
(in thousands)
In-process research and development
$
4,690

 
$
—

 
$
4,690

 
$
4,690

 
$
—

 
$
4,690

Technology licenses
3,000

 
(2,475
)
 
525

 
3,000

 
(2,325
)
 
675

Patent rights
1,949

 
(1,949
)
 
—

 
1,949

 
(1,949
)
 
—

Developed technology
26,670

 
(6,536
)
 
20,134

 
26,670

 
(5,247
)
 
21,423

Customer relationships
17,610

 
(5,999
)
 
11,611

 
17,610

 
(4,664
)
 
12,946

Trade name
3,600

 
(3,600
)
 
—

 
3,600

 
(3,000
)
 
600

Total intangible assets
$
57,519

 
$
(20,559
)
 
$
36,960

 
$
57,519

 
$
(17,185
)
 
$
40,334
Schedule of expected amortization expense
The estimated future amortization expense related to intangible assets at June 30, 2014, is as follows:
Fiscal Year
Estimated
Amortization
(in  thousands)
2014
(remaining 6 months)
$
2,698

2015
 
5,009

2016
 
4,394

2017
 
3,994

2018
 
3,746

Thereafter
12,429

Total (1)
$
32,270

_______________
(1)
 The total above excludes $4.7 million of in-process research and development that will be amortized upon completion of development over the estimated useful life of the technology.