The following table summarizes our intangible assets and software development costs at March 31, 2021, and 2020:

	March 31, 2021 and 2020
	Gross								Net
	carrying		Accumulated			Accumulated			carrying
(In thousands)	amount		amortization			Impairment			amount
Amortized intangible assets:
Customer relationships	$	10,775	$	(10,775	)	$	-		$	-
Non-competition agreements		2,700		(2,700	)		—			—
Developed technology		10,398		(10,398	)		—			—
Trade names		230		(230	)		—			—
Patented technology		80		(80	)		—			—
		24,183		(24,183	)		—			—
Trade names		8,400	N/A				—			8,400
Total intangible assets	$	32,583	$	(24,183	)	$	-		$	8,400

(In thousands)
Software development costs	$	67,541	$	(45,535	)	$	(22,006	)	$	-

Indefinite-lived intangible assets, comprised of our purchased trade name InfoGenesis™ as of March 31, 2021 and 2020 are tested for impairment upon identification of impairment indicators or at least annually. An impairment loss is recognized if the carrying amount is greater than fair value. The InfoGenesis™ indefinite-lived purchased trade name impairment testing resulted in a fair value exceeding the carrying amount for the years ending March 31, 2021, 2020 and 2019.

Management compares the unamortized capitalized software development costs for each external use product to its net realizable value by analyzing critical inputs such as costs necessary to bring the software to market, costs necessary to maintain the software, life of the software, and market capacity. As of March 31, 2020, management determined the net realizable value of the remaining

capitalized software development costs for certain solutions within out rGuest suite of products no longer exceeded their carrying value, and as a result, recorded non-cash impairment charges of $22.0 million. The impact of the COVID-19 pandemic on the hospitality industry resulted in economic conditions which make it difficult to project future sales and revenue accurately for the related rGuest solutions. After evaluating the Company’s strategy for market development and continued costs to support the software, an impairment charge was required. The amount of impairment recognized during the period reduced the carrying value of capitalized software development costs to zero with no remaining amortization expense to be recognized in future periods.

Amortization expense related to software development costs related to assets to be sold, leased, or otherwise marketed was $12.6 million for each of the fiscal years ended March 31, 2020 and 2019. These charges are included as Products cost of goods sold within the Consolidated Statements of Operations.