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Cash and Cash Equivalents and Restricted Cash (Details)
$ in Thousands
Dec. 31, 2022
USD ($)
FinancialInstitution
Dec. 31, 2021
USD ($)
FinancialInstitution
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Cash and cash equivalents $ 26,027 $ 41,496    
Restricted cash 1,650 1,180    
Restricted cash, non-current 4,800 2,950    
Cash and cash equivalents and restricted cash 32,477 45,626 $ 22,051 $ 14,554
Cash and Cash Equivalents and Restricted Cash [Abstract]        
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 $ 10,700 $ 7,100    
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 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      
December 2022 Alpha Bank Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility 500      
Piraeus Bank Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility   850    
February 2019 ATB Loan Facility [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility   500    
Dry-docking reserve account   630    
Championship Cargill Sale and Leaseback [Member]        
Cash and Cash Equivalents and Restricted Cash [Abstract]        
Minimum liquidity requirements per Loan Facility $ 1,600 $ 1,600