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Intangibles, net

6 Months Ended

Oct. 30, 2021

8. Intangibles, net

The components of intangibles are as follows (in thousands):


	October 30,		April 30,
	2021		2021
Technology	$	57,887	$	46,850
Licenses		1,008		1,008
Customer relationships		72,872		68,073
Backlog		2,303		—
In-process research and development		550		550
Non-compete agreements		320		320
Trademarks and tradenames		68		68
Other		105		3
Intangibles, gross		135,113		116,872
Less accumulated amortization		(24,493)		(10,604)
Intangibles, net	$	110,620	$	106,268

The weighted average amortization period at October 30, 2021 and April 30, 2021 was five years, respectively. Amortization expense for the three and six months ended October 30, 2021 was $6,843,000 and $13,816,000, respectively. Amortization expense for the three and six months ended October 31, 2020 was $715,000 and $1,424,000, respectively.

Technology, backlog and customer relationship intangible assets were recognized in conjunction with the Company’s acquisition of Telerob on May 3, 2021. Technology and customer relationship intangible assets were recognized in conjunction with the Company’s acquisition of Arcturus on February 19, 2021. Technology and customer relationship intangible assets were recognized in conjunction with the Company’s acquisition of ISG on February 23, 2021. Refer to Note 18—Business Acquisitions for further details.

Estimated amortization expense for the next five years is as follows (in thousands):


	Year ending
	April 30,
2022	$	15,131
2023		27,719
2024		26,870
2025		18,156
2026		13,114
	$	100,990