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Cash, Cash Equivalents and Restricted Cash (Tables)
6 Months Ended
Jun. 30, 2022
Cash and Cash Equivalents [Abstract]  
Schedule of Cash, Cash Equivalents, and Restricted Cash
Cash, cash equivalents, and restricted cash balances were as follows (in thousands):
 
    
June 30,
2022
    
December 31,
2021
 
Cash and cash equivalents
   $ 10,203      $ 22,802  
Restricted balance for loan agreement
     4,000        4,000  
Letters of credit
     101        101  
Security for credit cards
     50        50  
    
 
 
    
 
 
 
Total cash, cash equivalents and restricted cash 
   $ 14,354      $ 26,953