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Goodwill and Intangible Assets, Net (Tables)
 9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in the Carrying Amount of Goodwill
Changes in the carrying amount of goodwill were as follows:
(In thousands) 
Balance at December 31, 2022
$49,085 
Goodwill impairment(49,075)
Foreign exchange effects(10)
Balance at September 30, 2023
$— 
Components of Intangible Assets, Net
The components of intangible assets, net were as follows:
 September 30, 2023December 31, 2022
(In thousands)
Gross (1)
Accumulated
Amortization (1)
Net
Gross (1)
Accumulated
Amortization (1)
Net
Capitalized software development costs$2,078 $(281)$1,797 $1,647 $(44)$1,603 
Customer relationships 6,340 (3,622)2,718 6,340 (3,080)3,260 
Developed and core technology 4,520 (3,966)554 4,520 (3,693)827 
Distribution rights304 (299)5 308 (281)27 
Patents32,509 (12,165)20,344 29,388 (10,790)18,598 
Trademarks and trade names450 (339)111 450 (295)155 
Total intangible assets, net$46,201 $(20,672)$25,529 $42,653 $(18,183)$24,470 

(1)This table excludes the gross value of fully amortized intangible assets totaling $44.3 million and $43.7 million at September 30, 2023 and December 31, 2022, 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,
2023202220232022
Cost of sales$146 $13 $302 $37 
Selling, general and administrative expenses1,119 1,018 3,282 2,928 
Total amortization expense$1,265 $1,031 $3,584 $2,965 
Estimated Future Amortization Expense Related to Intangible Assets
Estimated future annual amortization expense related to our intangible assets at September 30, 2023, was as follows:
(In thousands)
2023 (remaining 3 months)$1,256 
20245,103 
20254,392 
20263,583 
20273,035 
Thereafter8,160 
Total$25,529