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Intangible Assets
 6 Months Ended
Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets

(6) Intangible Assets

 

The following table sets forth information regarding intangible assets (in thousands):

 

   June 30, 2022   December 31, 2021 
Patents  $847   $847 
Accumulated amortization   (475)   (447)
Intangible assets, net  $372   $400