The Company’s finite and indefinite-lived intangible assets consist of the following:

	December 31, 2020					December 31, 2019
	Gross Carrying		Accumulated			Gross Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
Finite-lived intangible assets
Patents	$	4,806	$	(4,806	)	$	4,806	$	(4,806	)
Land use rights		1,286		(396	)		1,128		(331	)
Trademark		1,756		(1,474	)		1,718		(1,358	)
Technology		7,673		(2,402	)		7,185		(1,708	)
Customer relationships		16,441		(8,441	)		15,811		(7,329	)
	$	31,962	$	(17,519	)	$	30,648	$	(15,532	)
Indefinite-lived intangible assets
Goodwill	$	29,508				$	27,840

The Company performs its annual impairment test for goodwill utilizing a combination of the income approach, which uses a discounted cash flow methodology, and the market approach, which uses comparable market multiples, and an overall market capitalization reasonableness test in computing fair value by reporting unit. The Company then compares the fair value of the reporting unit with its carrying value to assess if goodwill has been impaired. The fair value estimates are subjective and sensitive to significant assumptions, such as revenue growth rates, operating margins, the weighted-average cost of capital (WACC), and estimated market multiples, of which are affected by expectations of future market or economic conditions. The Company believes that the methodologies, significant assumptions, and weightings used are reasonable and result in appropriate fair values of the reporting units.

The Company performed its annual impairment test for goodwill as of October 1, 2020 and October 1, 2019 and determined that no adjustment to the carrying value was required.

	USA		The Americas		EMEA			Asia-Pacific			Total
Balance at January 1, 2019	$	3,078	$	3,997	$	1,355		$	7,191		$	15,621
Currency translation		0		161		(45	)		(29	)		87
Goodwill acquired during the year		0		0		18,619			0			18,619
Purchase price allocation adjustments		0		0		(6,487	)		0			(6,487	)
Balance at December 31, 2019		3,078		4,158		13,442			7,162			27,840
Currency translation		0		93		1,007			568			1,668
Balance at December 31, 2020	$	3,078	$	4,251	$	14,449		$	7,730		$	29,508

The Company’s only intangible asset with an indefinite life is goodwill. The Company’s goodwill is not deductible for tax purposes. Of the $6.5 million in purchase price allocation adjustments at December 31, 2019, $6.3 million represented an allocation to definite lived intangible assets and $.2 million represented an inventory step-up allocation. Refer to Note O “Business Combinations” for additional details regarding the Company’s purchase price allocations during fiscal 2019.

The aggregate amortization expense for other intangibles with finite lives, ranging from 4 to 82 years, for the year ended December 31, 2020 was $1.8 million and was $1.5 million for both years ended December 31, 2019 and 2018. Amortization expense is estimated to be $1.7 million for 2021, $1.6 million for 2022, 2023 and 2024 and $1.4 million for 2025. The weighted-average remaining amortization period is approximately 12.4 years. The weighted-average remaining amortization period by intangible asset class; patents, 5.0 years; land use rights, 55.6 years; trademark, 8.6 years; technology, 10.1 years and customer relationships, 9.5 years.