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Patents and Other Intangible Assets - Summary (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Patents | $ 1,292 | $ 1,287
Trademarks | 90 | 90
Other | 8 | 8
Patents and other intangible assets | 1,390 | 1,385
Accumulated amortization | (559) | (549)
Finite-Lived Intangible Assets, Net | 831 | 836
Patents pending |  |
Patents | 445 | 477
Issued patents |  |
Patents | 847 | 810
Trademarks pending |  |
Trademarks | 4 | 4
Registered trademarks |  |
Trademarks | $ 86 | $ 86

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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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