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Identifiable Intangible Assets
6 Months Ended
Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]  
Intangible Assets Disclosure [Text Block]
Purchased Intangible Assets
Purchased intangible assets as of June 30, 2017 and December 31, 2016 are as follows:


Gross Carrying Amount

Accumulated Amortization

Net
June 30, 2017







 

Finite-lived intangibles:
 
 
 
 
 
 
Developed technology

$
65,527


$
57,790


$
7,737

Customer and distributor relationships

9,560


8,670


890

Trade names

4,361


3,725


636

Total identifiable intangible assets

$
79,448


$
70,185


$
9,263

December 31, 2016

 


 


 

Finite-lived intangibles:
 
 
 
 
 
 
Developed technology

$
65,527


$
56,986


$
8,541

Customer and distributor relationships

9,560


8,514


1,046

Trade names

4,361


3,675


686

Total identifiable intangible assets

$
79,448


$
69,175


$
10,273


Intangible asset amortization expense for the three and six month periods ended June 30, 2017 was $505 and $1,010, respectively. For the three and six month periods ended June 30, 2016, intangible assets amortization expenses was $595 and $1,190, respectively. Assuming no change in the gross carrying value of identifiable intangible assets and estimated lives, estimated amortization expense for the remainder of 2017 will be $923, and for each of the next five years estimated amortization expense amounts to $1,496 for 2018, $1,496 for 2019, $1,294 for 2020, $546 for 2021, and $480 for 2022.