Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill for the year ended December 31, 2017 were as follows (in thousands):



	TASER Weapons		Software and Sensors		Total
Balance, January 1, 2017	$	562	$	9,880	$	10,442
Goodwill acquired	825		3,505		4,330
Purchase accounting adjustments	—		23		23
Foreign currency translation adjustments	66		66		132
Balance, December 31, 2017	$	1,453	$	13,474	$	14,927

Intangible Assets Other than goodwill

Intangible assets (other than goodwill) consisted of the following (in thousands):



		December 31, 2017							December 31, 2016
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortized (definite-lived intangible assets):
Domain names	5-10 years	$	3,161	$	(428	)	$	2,733	$	3,161	$	(125	)	$	3,036
Issued patents	4-15 years	2,697		(913		)	1,784		1,942		(780		)	1,162
Issued trademarks	3-11 years	860		(397		)	463		655		(320		)	335
Customer relationships	4-8 years	1,377		(451		)	926		914		(240		)	674
Non-compete agreements	3-4 years	556		(346		)	210		465		(236		)	229
Developed technology	3-7 years	13,469		(3,956		)	9,513		8,661		(824		)	7,837
Re-acquired distribution rights	2 years	2,133		(711		)	1,422		—		—			—
Total amortized		24,253		(7,202		)	17,051		15,798		(2,525		)	13,273
Not amortized (indefinite-lived intangible assets:
TASER trademark		900					900		900					900
Patents and trademarks pending		872					872		1,045					1,045
Total not amortized		1,772					1,772		1,945					1,945
Total intangible assets		$	26,025	$	(7,202	)	$	18,823	$	17,743	$	(2,525	)	$	15,218

Estimated Amortization Expense of Intangible Assets

Estimated amortization for intangible assets with definitive lives for the next five years ended December 31, and thereafter, is as follows (in thousands):



2018	$	5,415
2019	3,868
2020	2,401
2021	2,266
2022	834
Thereafter	2,267
Total	$	17,051