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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2023
Fair Value of Financial Instruments  
Financial assets and liabilities measured at fair value

(in thousands)

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

  Short-term investments

 

$8,436

 

 

$-

 

 

$-

 

 

$8,436

 

  Marketable equity securities

 

$1,032

 

 

$-

 

 

$-

 

 

$1,032

 

(in thousands)

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

  Short-term investments

 

$3,951

 

 

$-

 

 

$-

 

 

$3,951

 

  Marketable equity securities

 

$949

 

 

$-

 

 

$-

 

 

$949