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Intangible Assets, Net
 6 Months Ended
Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets, Net Intangible Assets, Net
Intangible Assets, Net

The components of intangible assets, net were as follows:
 June 30, 2025December 31, 2024
(In thousands)
Gross (1)
Accumulated
Amortization (1)
Net
Gross (1)
Accumulated
Amortization (1)
Net
Capitalized software development costs$1,580 $(369)$1,211 $2,575 $(1,150)$1,425 
Customer relationships 6,340 (4,888)1,452 6,340 (4,526)1,814 
Developed and core technology 740 (445)295 740 (398)342 
Patents34,954 (14,936)20,018 34,758 (14,339)20,419 
Trademarks and trade names50 (28)22 450 (412)38 
Total intangible assets, net$43,664 $(20,666)$22,998 $44,863 $(20,825)$24,038 
(1)This table excludes the gross value of fully amortized intangible assets totaling $51.8 million and $49.3 million at June 30, 2025 and December 31, 2024, respectively.

Amortization expense is recorded in selling, general and administrative expenses, except amortization expense related to capitalized software development costs, which is recorded in cost of sales. Amortization expense by statement of operations caption was as follows:
(In thousands)Three Months Ended June 30,Six Months Ended June 30,
2025202420252024
Cost of sales$100 $140 $341 $281 
Selling, general and administrative expenses1,098 1,080 2,198 2,176 
Total amortization expense$1,198 $1,220 $2,539 $2,457 
 
Estimated future annual amortization expense related to our intangible assets at June 30, 2025, was as follows:
(In thousands)
2025 (remaining 6 months)$2,526 
20264,761 
20273,794 
20282,976 
20292,722 
Thereafter6,219 
Total$22,998