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GOODWILL AND OTHER INTANGIBLE ASSETS
6 Months Ended
Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND OTHER INTANGIBLE ASSETS
NOTE 8. GOODWILL AND OTHER INTANGIBLE ASSETS

The following table summarizes intangible assets by category (in thousands):
 
June 30, 2015
 
December 31, 2014
 
Gross Amount
 
Accumulated
Amortization
 
Net Amount
 
Gross Amount
 
Accumulated
Amortization
 
Net Amount
Finite-lived intangible assets
 
 
 
 
 
 
 
 
 
 
 
Domain names
$
4,219

 
$
(1,223
)
 
$
2,996

 
$
4,219

 
$
(1,026
)
 
$
3,193

Customer relationships
3,113

 
(461
)
 
2,652

 
3,113

 
(323
)
 
2,790

Acquired technology
436

 
(102
)
 
334

 
436

 
(58
)
 
378

Other intangible assets
107

 
(65
)
 
42

 
107

 
(50
)
 
57

 
$
7,875

 
$
(1,851
)
 
$
6,024

 
$
7,875

 
$
(1,457
)
 
$
6,418

Indefinite-lived intangible assets
 
 
 
 
 
 
 
 
 
 
 
License to operate in China
$
100

 

 
$
100

 
$
100

 

 
$
100

Total intangible assets
$
7,975

 

 
$
6,124

 
$
7,975

 

 
$
6,518




We recorded total amortization expense of $0.4 million and $0.3 million for the six months ended June 30, 2015 and 2014, respectively.

The following table summarizes the changes in goodwill during the six months ended June 30, 2015 and the year ended December 31, 2014 (in thousands):
 
Six Months Ended June 30,
 
Year Ended December 31,
 
2015
 
2014
Balance at beginning of period
$
5,293

 
$
1,823

Goodwill acquired

 
3,470

Balance at end of period
$
5,293

 
$
5,293