Goodwill and Purchased Intangible Assets

12 Months Ended

Dec. 31, 2018

Identifiable Intangible Assets [Abstract]

Goodwill and Purchased Intangible Assets

5. Goodwill and Purchased Intangible Assets:

Goodwill

The gross amount of goodwill at both December 31, 2018 and 2017 was $215,367.  Reflecting an impairment charge of $192,872 in 2008, the carrying amount of goodwill totaled $22,495 and remained unchanged over both the years ended December 31, 2018 and 2017.

Purchased Intangible Assets

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

	Gross Carrying Amount		Accumulated Amortization		Net
December 31, 2018
Finite-lived intangibles:
Developed technology	$	66,177	$	59,692	$	6,485
Customer and distributor relationships		9,560		9,082		478
Trade names		4,361		3,876		485
Total identifiable intangible assets	$	80,098	$	72,650	$	7,448
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 expense amounted to $1,534, $1,940 and $2,320 for the years ended December 31, 2018, 2017 and 2016, respectively. Assuming no change in the gross carrying value of identifiable intangible assets and estimated lives, estimated amortization expenses are $1,548 for 2019, $1,346 for 2020, $598 for 2021, $532 for 2022, and $515 for 2023.