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Cash and Cash Equivalents
12 Months Ended
Dec. 31, 2022
Cash and Cash Equivalents  
Cash and Cash Equivalents

5.    Cash and Cash Equivalents

The following is a summary of cash and cash equivalents at December 31, 2021 and 2022 (in thousands):

 

December 31, 

    

2022

    

2021

Cash

$

13,798

$

32,082

Cash equivalents

 

4,547

 

4,477

Total cash and cash equivalents

$

18,345

$

36,559

Cash equivalents are made up entirely of money market funds.