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Goodwill and Intangible Assets, Net (Tables)
 9 Months Ended
Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Components of Intangible Assets, Net
The components of intangible assets, net were as follows:
 September 30, 2024December 31, 2023
(In thousands)
Gross (1)
Accumulated
Amortization (1)
Net
Gross (1)
Accumulated
Amortization (1)
Net
Capitalized software development costs$2,511 $(909)$1,602 $2,161 $(421)$1,740 
Customer relationships 6,340 (4,346)1,994 6,340 (3,803)2,537 
Developed and core technology 740 (374)366 4,220 (3,754)466 
Patents34,547 (13,888)20,659 33,195 (12,686)20,509 
Trademarks and trade names450 (397)53 450 (353)97 
Total intangible assets, net$44,588 $(19,914)$24,674 $46,366 $(21,017)$25,349 
(1)This table excludes the gross value of fully amortized intangible assets totaling $49.3 million and $45.0 million at September 30, 2024 and December 31, 2023, respectively.
Finite-lived Intangible Assets Amortization Expense Amortization expense by statement of operations caption was as follows:
(In thousands)Three Months Ended September 30,Nine Months Ended September 30,
2024202320242023
Cost of sales$207 $146 $488 $302 
Selling, general and administrative expenses1,160 1,119 3,336 3,282 
Total amortization expense$1,367 $1,265 $3,824 $3,584 
Estimated Future Amortization Expense Related to Intangible Assets
Estimated future annual amortization expense related to our intangible assets at September 30, 2024, was as follows:
(In thousands)
2024 (remaining 3 months)$1,369 
20254,984 
20264,420 
20273,401 
20282,780 
Thereafter7,720 
Total$24,674