Intangible Assets Intangible Assets

9 Months Ended

Oct. 03, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets, net, consist of the following (in thousands):



	October 3, 2015			January 3, 2015
Patents	$	21,606		$	20,459
Customer relationships	7,669			7,669
Acquired technology	5,580			5,580
Trademarks	3,867			3,562
Capitalized software development costs	2,427			2,066
Other	2,534			1,450
Total cost	43,683			40,786
Accumulated amortization	(15,800		)	(13,015		)
Intangible assets, net	$	27,883		$	27,771

Total amortization expense for the three months ended October 3, 2015 and September 27, 2014 was $0.9 million and $1.0 million, respectively. Total amortization expense for the nine months ended October 3, 2015 and September 27, 2014 was $3.3 million and $2.7 million, respectively. All of these intangible assets have a 10 year weighted average amortization period.

Estimated amortization expense for future fiscal years is as follows (in thousands):



Fiscal year	Amount
2015 (balance of year)	$	3,596
2016	3,364
2017	3,156
2018	2,592
2019	2,458
Thereafter	12,717
Total	$	27,883