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GOODWILL AND INTANGIBLE ASSETS
3 Months Ended
Mar. 31, 2013
GOODWILL AND INTANGIBLE ASSETS [Abstract]  
GOODWILL AND INTANGIBLE ASSETS
6.
GOODWILL AND INTANGIBLE ASSETS

Changes in the carrying value of goodwill for the three months ended March 31, 2013 were as follows (in thousands):

Three Months Ended
 
 
March 31,
 
 
2013
 
 
Balance, December 31, 2012
 
$
960
 
 
Additions from Vineyard acquisition
 
 
12,751
 
 
Translation adjustments
 
 
(470
)
Balance, March 31, 2013
 
$
13,241
 
 
 
Intangible assets other than goodwill are amortized on a straight-line basis over the following estimated remaining useful lives.

The following table is a summary of acquired intangible assets with remaining net book values at March 31, 2013 (in thousands, except weighted average remaining life):

Gross
Carrying
Value
 
Accumulated
Amortization
 
Net
Carrying
Value
Weighted Average Remaining Life
Developed technology
$
5,699
$
(262
)
$
5,437
4.76
Customer relationships
2,459
(114
)
2,345
4.76
Balance at March 31, 2013
$
8,158
$
(376
)
$
7,782

The Company had no acquired intangible assets with remaining book values at December 31, 2012.

For the three months ended March 31, 2013, amortization expense of $0.3 million related to developed technology was recorded in product cost of sales and amortization expense of $0.1 million related to customer relationships was recorded in operating expense.

 
The changes in the carrying value of acquired intangible assets during the three months ended March 31, 2012 were as follows (in thousands):

Gross
Carrying
Value
 
Accumulated
Amortization
 
Net
Carrying
Value
 
Balance at December 31, 2012
$
—
$
—
$
—
Additions
8,460
(376
)
8,084
Translation adjustments
(302
)
—
(302
)
Balance at March 31, 2013
$
8,158
$
(376
)
$
7,782


The following table presents the estimated future amortization of intangible assets as of March 31, 2013 (in thousands):

Fiscal Year
 
Amortization
 
2013 (remaining nine months)
 
$
1,220
 
2014
 
 
1,632
 
2015
 
 
1,632
 
2016
 
 
1,632
 
2017
 
 
1,632
 
Thereafter
 
 
34
 
Total
 
$
7,782