Purchased Intangible Assets

9 Months Ended

Sep. 30, 2018

Purchased Intangible Assets [Abstract]

Purchased Intangible Assets

NOTE 7. Purchased Intangible Assets

Purchased intangible assets as of September 30, 2018 and December 31, 2017 are as follows:

	Gross Carrying Amount		Accumulated Amortization		Net
September 30, 2018
Finite-lived intangibles:
Developed technology	$	66,127	$	59,396	$	6,731
Customer and distributor relationships		9,561		9,016		545
Trade names		4,361		3,851		510
Total identifiable intangible assets	$	80,049	$	72,263	$	7,786
December 31, 2017
Finite-lived intangibles:
Developed technology	$	65,827	$	58,522	$	7,305
Customer and distributor relationships		9,560		8,818		742
Trade names		4,361		3,776		585
Total identifiable intangible assets	$	79,748	$	71,116	$	8,632

Intangible asset amortization expenses for the three and nine months ended September 30, 2018 were $384 and $1,147, respectively.  For the three and nine month periods ended September 30, 2017, intangible assets amortization expenses were $506 and $1,516, respectively.  Assuming no change in the gross carrying value of identifiable intangible assets and estimated lives, estimated amortization expenses for the remainder of 2018 are $386, and for each of the next five years estimated amortization expenses are $1,544 for 2019, $1,341 for 2020, $594 for 2021, $527 for 2022, and $511 for 2023.