Orion has $0.9 million of goodwill related to its purchase of Voltrek in the third quarter of fiscal 2023, which has an indefinite life, and is assigned to the EV Charging operating segment.

Orion has $0.6 million of goodwill related to its purchase of Stay-Lite Lighting during fiscal year 2022, which has an indefinite life, and is assigned to the Orion Services Group operating segment. Goodwill related to the Stay-Lite Lighting acquisition increased by $0.2 million to $0.6 million as compared to March 31, 2022. This increase was due to updates to purchase accounting within the measurement period.

See Note 18 – Acquisition for further discussion of the Stay-Lite Lighting and Voltrek acquisitions.

The costs of specifically identifiable intangible assets that do not have an indefinite life are amortized over their estimated useful lives. Goodwill and intangible assets with indefinite lives are not amortized.

Intangible assets that have a definite life are evaluated for potential impairment whenever events or circumstances indicate that the carrying value may not be recoverable based primarily upon whether expected future undiscounted cash flows are sufficient to support the asset recovery. If the actual useful life of the asset is shorter than the estimated life, the asset may be deemed to be impaired and accordingly a write-down of the value of the asset determined by a discounted cash flow analysis or shorter amortization period may be required.

Indefinite lived intangible assets and goodwill are evaluated for impairment at least annually on the first day of Orion’s fiscal fourth quarter, or when indications of potential impairment exist. This annual impairment review may begin with a qualitative test to determine whether it is more likely than not that an indefinite lived intangible asset's carrying value is greater than its fair value. If the qualitative assessment reveals that asset impairment is more likely than not, a quantitative impairment test is performed comparing the fair value of the indefinite lived intangible asset to its carrying value. Alternatively, the qualitative test may be bypassed and the quantitative impairment test may be immediately performed. If the fair value of the indefinite lived intangible asset exceeds its carrying value, the indefinite lived intangible asset is not impaired and no further review is performed. If the carrying value of the indefinite lived

intangible asset exceeds its fair value, an impairment loss would be recognized in an amount equal to such excess. Once an impairment loss is recognized, the adjusted carrying value becomes the new accounting basis of the indefinite lived intangible asset.

Orion performed a qualitative assessment in conjunction with its annual impairment test of its indefinite lived intangible assets as of January 1, 2023. This qualitative assessment considered Orion’s operating results for the first nine months of fiscal 2023 in comparison to prior years as well as its anticipated fourth quarter results and fiscal 2024 plan. As a result of the conditions that existed as of the assessment date, an asset impairment was not deemed to be more likely than not and a quantitative analysis was not required.

Orion performed a qualitative assessment in conjunction with its annual impairment test of its goodwill as of January 1, 2023. This qualitative assessment considered Orion segment's operating results for the first nine months of fiscal 2023 in comparison to prior years as well as its anticipated fourth quarter results and fiscal 2024 plan. As a result of the conditions that existed as of the assessment date, an asset impairment was not deemed to be more likely than not and a quantitative analysis was not required.

The components of, and changes in, the carrying amount of other intangible assets were as follows (dollars in thousands):


	March 31, 2023									March 31, 2022
	Gross Carrying Amount		Accumulated Amortization			Net		Weighted Average Useful Life		Gross Carrying Amount		Accumulated Amortization			Net
Amortized Intangible Assets
Patents	$	2,521	$	(1,930	)	$	591		8.1	$	2,652	$	(1,932	)	$	720
Licenses		58		(58	)		—		—		58		(58	)		—
Trade name and trademarks		464		(73	)		391		4.3		118		(6	)		112
Customer relationships		5,509		(3,914	)		1,595		3.9		4,178		(3,618	)		560
Vendor relationships		2,600		(183	)		2,417		6.5		—		—			—
Developed technology		900		(900	)		—		—		900		(900	)		—
Total Amortized Intangible Assets	$	12,052	$	(7,058	)	$	4,994		5.6	$	7,906	$	(6,514	)	$	1,392

Indefinite-lived Intangible Assets
Trade name and trademarks	$	1,010	$	—		$	1,010			$	1,012	$	—		$	1,012
Total Indefinite-lived Intangible Assets	$	1,010	$	—		$	1,010			$	1,012	$	—		$	1,012

Total Other Intangible Assets	$	13,062	$	(7,058	)	$	6,004			$	8,918	$	(6,514	)	$	2,404

Amortization expense is set forth in the following table (dollars in thousands):


	Fiscal Year Ended March 31,
	2023		2022		2021
Amortization included in cost of sales:
Patents	$	107	$	183	$	175
Total	$	107	$	183	$	175
Amortization included in operating expenses:
Customer relationships	$	296	$	27	$	47
Vendor relationships		183		—		—
Developed technology		—		11		68
Tradename		67		6		—
Total		546		44		115
Total amortization of intangible assets	$	653	$	227	$	290

Orion’s management periodically reviews the carrying value of patent applications and related costs. When a patent application is probable of being unsuccessful or a patent is no longer in use, Orion writes off the remaining carrying value as a charge to general and administrative expense within its Consolidated Statements of Operations. In fiscal years 2023, 2022, and 2021, write-offs were immaterial.