Note 7. Goodwill and Intangible Assets

We account for goodwill and intangible assets in accordance with ASC 350, Goodwill and Other Intangible Assets.

Goodwill

The changes in the carrying amount of goodwill related to each reportable segment for the fiscal year ended April 27, 2019 were as follows:



	Live Events			Commercial			Transportation			International			Total
Balance as of April 28, 2018:	$	2,295		$	3,344		$	67		$	2,558		$	8,264
Foreign currency translation	(19		)	(126		)	(18		)	(212		)	(375		)
Balance as of April 27, 2019:	$	2,276		$	3,218		$	49		$	2,346		$	7,889

We perform an analysis of goodwill on an annual basis, and it is tested for impairment more frequently if events or changes in circumstances indicate that an asset might be impaired. We perform our annual analysis during our third quarter of each fiscal year, based on the goodwill amount as of the first business day of our third fiscal quarter.

In conducting our impairment testing, we compare the fair value of each of our business units to the related carrying value of the allocated assets. We utilize the income approach based on discounted projected cash flows to estimate the fair value of each unit. The projected cash flows use many estimates including market conditions, expected market demand and our ability to grow or maintain market share, gross profit, and expected expenditures for capital and operating expenses. Assets shared or not directly attributed to a reportable segment's activities are allocated to the reportable segment based on sales and other measures.

We performed our annual impairment test and concluded no goodwill impairment existed for fiscal years 2019, 2018, and 2017.

Intangible Assets

The following table summarizes intangible assets, net, as of April 27, 2019 and April 28, 2018:



	April 27, 2019
	Weighted Average Life (in years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Registered trademarks	19.5	$	679	$	148	$	531
Software	3.0	6,330		3,807		2,523
Customer relationships	10.0	2,720		888		1,832
Other	1.4	123		103		20
Total amortized intangible assets	6.0	$	9,852	$	4,946	$	4,906

	April 28, 2018
	Weighted Average Life (in years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Registered trademarks	20.0	$	709	$	118	$	591
Software	3.0	2,978		2,109		869
Customer relationships	10.0	2,859		637		2,222
Other	1.0	100		100		—
Total amortized intangible assets	7.8	$	6,646	$	2,964	$	3,682

In the fiscal years 2019, 2018, and 2017, amortization expense including impairment related to intangible assets was $2,157, $1,330, and $2,546, respectively. Amortization expenses are included primarily in product design and development and selling expense in the consolidated statement of operations.

As of April 27, 2019, amortization expenses for future periods were estimated to be as follows:



Fiscal years ending	Amount
2020	$	1,495
2021	1,492
2022	485
2023	288
2024	287
Thereafter	859
Total expected amortization expense	$	4,906