	Software & Subscription Services			Telematics Products		Total
Balance as of February 28, 2021	$	55,437		$	39,180	$	94,617
Effect of exchange rate change on goodwill		(181	)		-		(181	)
Balance as of February 28, 2022	$	55,256		$	39,180	$	94,436

As further described in Note 1 Description of Business and Summary of Significant Accounting Policies, we have begun entering into subscription arrangements with customers who have historically purchased MRM telematics products from us, which is expected to result in growth in Software & Subscription Services revenues and a corresponding decline in Telematics Products revenues as we transition the MRM telematics business to long-term subscription contracts. This transition is expected to be completed over the course of Fiscal 2023. As a result of this strategic shift, we anticipate that the goodwill presently associated with our Telematics Products reporting unit will be re-allocated to our other reporting units in Fiscal 2023 at such time that this customer transition is substantially complete.

		Gross (2)							Accumulated Amortization (2)						Net
	Useful Life	Feb. 28, 2021		Additions & Adjustments, net (1)			Feb. 28, 2022		Feb. 28, 2021		Amortization Expense		Feb. 28, 2022		Feb. 28, 2021		Feb. 28, 2022
Developed technology	4-6 years	$	26,994		(36	)	$	26,958	$	24,057		1,413	$	25,470	$	2,937	$	1,488
Tradenames	10 years		30,257		(65	)		30,192		18,428		2,143		20,571		11,829		9,621
Customer relationships	10-15 years		35,270		134			35,404		12,902		1,981		14,883		22,368		20,521
Patents	5 years		589		-			589		235		19		254		354		335
		$	93,110	$	33		$	93,143	$	55,622	$	5,556	$	61,178	$	37,488	$	31,965

Intangible assets with finite lives are amortized on a straight-line basis over the expected period to be benefited by future cash flows. We monitor and assess these assets for impairment on a periodic basis. Our assessment includes various new product lines and services, which leverage the existing intangible assets as well as consideration of historical and projected revenues and cash flows. In both fiscal 2021 and 2020, we determined that the prolonged secular decline in legacy LoJack US SVR products revenue coupled with the slower than anticipated market penetration of our telematics solutions in the U.S. automotive dealership channel represented determinate indications of impairment. As a result, we performed an assessment of the carrying amount of the related intangible assets supporting these products including the LoJack tradename and dealer and customer relationships. Our assessment of the future cash flows generated by these assets concluded that an impairment loss was present. For the fiscal year ended February 28, 2021, we recorded an impairment loss aggregating $1.5 million, which was attributable to $1.0 million of US Dealer relationships and $0.5 million of developed technology. For the fiscal year ended February 29, 2020, we recorded an impairment loss aggregating $17.7 million, which was attributable to $11.5 million of the LoJack Tradename and $6.2 million of US Dealer relationships. Approximately, $1.5 million and $12.0 million of these impairment losses are included within net loss from discontinued operations for fiscal years ended February 28/29, 2021 and 2020, respectively.

Amortization expense of intangible assets from continuing operations was $5.4 million, $4.8 million and $5.9 million in fiscal years ended February 28/29, 2022, 2021 and 2020, respectively.

Estimated future amortization expense as of February 28, 2022 is as follows (in thousands):