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Intangible Assets and Acquisition Related Charges
 12 Months Ended
Jan. 03, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets and Acquisition Related Charges
Intangible Assets and Acquisition Related Charges

In connection with our acquisition of SiliconBlue in December 2011, we recorded identifiable intangible assets related to developed technology and customer relationships based on guidance for determining fair value under the provisions of ASC 820. The following table summarizes the details of the Company’s total purchased intangible assets:
(In thousands)
 
Weighted Average Amortization Period (in years)
 
Gross
 
Accumulated Amortization
 
Intangible assets, net of amortization January 3, 2015
Developed technology
 
7.0
 
$
10,700

 
$
(4,649
)
 
$
6,051

Customer relationships
 
5.5
 
7,800

 
(4,314
)
 
3,486

Total
 
6.3
 
$
18,500

 
$
(8,963
)
 
$
9,537




Amortization expense associated with these intangible assets is reported as Acquisition related charges, including amortization of intangible assets in the Consolidated Statements of Operations and amounted to $2.9 million in each of the fiscal years 2014, 2013 and 2012. We expect amortization expense related to these intangible assets to approximate $2.9 million in 2015 and 2016, $2.2 million in 2017 and $1.5 million in 2018.

Acquisition related charges, including amortization of intangible assets in the Consolidated Statements of Operations, also include severance and professional fees related to the acquisition, as well as expensed stepped up value of inventory collectively, amounting to less than $0.1 million in 2014 and 2013, and $1.2 million, in 2012, respectively.