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Intangible Assets
12 Months Ended
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets

Note 6 – Intangible Assets

 

Intangible assets consisted of the following (in thousands):

 

December 31, 2023

 

   Cost   Accumulated Amortization   Net 
Patents  $87   $78   $9 

 

December 31, 2022

 

   Cost   Accumulated Amortization   Net 
Patents  $565   $446   $119 

 

Amortization expense was $0.1 million and $0.1 million in years ended December 31, 2023 and 2022, respectively, including costs of abandoned patent applications.

 

The estimated amortization expense related to intangible assets for each of the five succeeding fiscal years and thereafter as of December 31, 2023 is approximately $1,000 per year.