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Segments and Major Customers (Tables)
 6 Months Ended
Jun. 30, 2013
Segment Reporting [Abstract]  
Reported segment revenues, and reported segment direct operating income (loss)
The tables below present reported segment operating income (loss) for the three and six months ended June 30, 2013 and 2012, respectively.
 
For the Three Months Ended June 30, 2013
 
For the Six Months Ended June 30, 2013
 
MID
 
CTO
 
All Other
 
Total
 
MID
 
CTO
 
All Other
 
Total
 
(In thousands)
 
(In thousands)
Revenues
$
49,456

 
$
—

 
$
8,463

 
$
57,919

 
$
109,131

 
$
—

 
$
15,654

 
$
124,785

Other patent royalties received
3,125

 
—

 
267

 
3,392

 
5,000

 
—

 
3,629

 
8,629

Customer licensing income
$
52,581

 
$
—

 
$
8,730

 
$
61,311

 
$
114,131

 
$
—

 
$
19,283

 
$
133,414

Segment operating expenses
9,347

 
7,074

 
12,215

 
28,636

 
18,272

 
14,932

 
22,289

 
55,493

Segment operating income (loss)
$
43,234

 
$
(7,074
)
 
$
(3,485
)
 
$
32,675

 
$
95,859

 
$
(14,932
)
 
$
(3,006
)
 
$
77,921

Reconciling items
 

 
 
 
 

 
(26,931
)
 
 

 
 
 
 

 
(70,736
)
Operating income
 

 
 
 
 

 
$
5,744

 
 

 
 
 
 

 
$
7,185

Interest and other income (expense), net
 

 
 
 
 

 
(8,845
)
 
 

 
 
 
 

 
(16,177
)
Loss before income taxes
 

 
 
 
 

 
$
(3,101
)
 
 

 
 
 
 

 
$
(8,992
)

 
For the Three Months Ended June 30, 2012
 
For the Six Months Ended June 30, 2012
 
MID
 
CTO
 
All Other
 
Total
 
MID
 
CTO
 
All Other
 
Total
 
(In thousands)
 
(In thousands)
Revenues
$
52,137

 
$
—

 
$
4,078

 
$
56,215

 
$
109,225

 
$
—

 
$
9,853

 
$
119,078

Other patent royalties received
—

 
—

 
1,201

 
1,201

 
—

 
—

 
3,615

 
3,615

Customer licensing income
$
52,137

 
$
—

 
$
5,279

 
$
57,416

 
$
109,225

 
$
—

 
$
13,468

 
$
122,693

Segment operating expenses
10,045

 
7,864

 
8,117

 
26,026

 
21,594

 
14,368

 
16,188

 
52,150

Segment operating income (loss)
$
42,092

 
$
(7,864
)
 
$
(2,838
)
 
$
31,390

 
$
87,631

 
$
(14,368
)
 
$
(2,720
)
 
$
70,543

Reconciling items
 

 
 
 
 

 
(53,139
)
 
 

 
 
 
 

 
(109,850
)
Operating loss
 

 
 
 
 

 
$
(21,749
)
 
 

 
 
 
 

 
$
(39,307
)
Interest and other income (expense), net
 

 
 
 
 

 
(6,630
)
 
 

 
 
 
 

 
(13,112
)
Loss before income taxes
 

 
 
 
 

 
$
(28,379
)
 
 

 
 
 
 

 
$
(52,419
)
Schedule of customer accounts representing 10% or more than 10% of total revenue
Revenue from the Company’s major customers representing 10% or more of total revenue for the three and six months ended June 30, 2013 and 2012, respectively, were as follows:
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
Customer 
 
2013
 
2012
 
2013
 
2012
Customer A
 
39
%
 
38
%
 
36
%
 
38
%
Customer B
 
*

 
*

 
*

 
10
%
_________________________________________
*    Customer accounted for less than 10% of total revenue in the period
Revenue from external customer by geographic regions
Revenue from customers in the geographic regions based on the location of customers' headquarters is as follows:
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
(In thousands)
 
2013
 
2012
 
2013
 
2012
South Korea
 
$
22,502

 
$
21,468

 
$
44,527

 
$
44,715

USA
 
15,106

 
15,280

 
40,675

 
31,469

Japan
 
12,261

 
15,902

 
26,869

 
33,471

Europe
 
5,432

 
943

 
7,560

 
2,072

Canada
 
1,862

 
1,872

 
3,648

 
3,851

Asia-Other
 
756

 
750

 
1,506

 
3,500

Total
 
$
57,919

 
$
56,215

 
$
124,785

 
$
119,078