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Cash and Cash Equivalents and Restricted Cash (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
FinancialInstitution
Dec. 31, 2022
USD ($)
FinancialInstitution
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Cash and cash equivalents $ 19,378 $ 26,027    
Restricted cash 50 1,650    
Restricted cash, non-current 5,500 4,800    
Cash and cash equivalents and restricted cash 24,928 32,477 $ 45,626 $ 22,051
Restricted deposits pledged as collateral $ 50 $ 50    
Number of financial institutions where restricted deposits are pledged as collateral regarding credit card balances | FinancialInstitution 1 1    
Minimum liquidity requirements for credit facilities covenants $ 9,600 $ 10,700    
Piraeus Bank Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility 2,000      
June 2022 Piraeus Bank Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility   2,000    
October 2022 Danish Ship Finance Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility 2,000 1,300    
August 2021 Alpha Bank Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility 500 500    
June 2022 Alpha Bank Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility 500 500    
December 2022 Alpha Bank Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility $ 500 500    
Championship Cargill Sale and Leaseback [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility   $ 1,600