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Intangible Assets
 9 Months Ended
Sep. 29, 2012
Intangible Assets, Net (Excluding Goodwill) [Abstract]  
Intangible Assets
Note 8. Intangible Assets
Finite-lived intangible assets are recorded at cost, less accumulated amortization. Finite-lived intangible assets as of September 29, 2012 and December 31, 2011 consisted of the following (in thousands):
 
 
Adjusted cost as of
 
Accumulated amortization as of
 
Net carrying amount as of
 
September 29, 2012
 
September 29, 2012
 
September 29, 2012
Developed technology
$
17,881

 
$
(8,292
)
 
$
9,589

Customer relationships
9,561

 
(8,511
)
 
1,050

Brand names
1,927

 
(1,574
)
 
353

Patented technology
2,252

 
(1,906
)
 
346

In-process research and development
330

 
(60
)
 
270

Trademark
80

 
(74
)
 
6

Total
$
32,031

 
$
(20,417
)
 
$
11,614

 
 
Adjusted cost as of December 31, 2011
 
Accumulated amortization as of December 31, 2011
 
Net carrying amount as of December 31, 2011
Developed technology
$
17,881

 
$
(6,254
)
 
$
11,627

Customer relationships
9,561

 
(7,961
)
 
1,600

Brand names
1,927

 
(1,498
)
 
429

Patented technology
2,252

 
(1,856
)
 
396

In-process research and development
330

 
—

 
330

Trademark
80

 
(68
)
 
12

Total
$
32,031

 
$
(17,637
)
 
$
14,394


The amortization of finite-lived intangibles is computed using the straight-line method except for customer relationships which are computed using an accelerated method. Estimated lives of finite-lived intangibles range from two to ten years. Total amortization expense for the three month periods ended September 29, 2012 and October 1, 2011 was $0.8 million and $0.3 million, respectively, and for the nine month periods ended September 29, 2012 and October 1, 2011 was $2.5 million and $1.1 million, respectively.
In the three month period ended March 31, 2012, the Company recorded a $0.6 million reduction in the fair value of royalty payments to RTM with a corresponding decrease of $0.4 million to goodwill and $0.2 million to intangible assets. There was no other adjustment to intangible assets recorded during the three month period ended September 29, 2012. See Note 4 for a summary of the acquisition and goodwill impairment analysis.