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Long-Term Debt and Other Financial Liabilities, August 2021 Alpha Bank Loan Facility (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
Installment
Tranche
Dec. 31, 2021
USD ($)
Aug. 09, 2021
USD ($)
Senior Long-Term Debt [Abstract]      
Balance outstanding $ 235,603 $ 218,551  
August 2021 Alpha Bank Loan Facility [Member]      
Senior Long-Term Debt [Abstract]      
Face amount     $ 44,120
Number of tranches | Tranche 2    
Average quarterly minimum free liquidity required to be maintained $ 500    
Minimum liquidity required to be maintained at all times 500    
Balance outstanding $ 33,865    
August 2021 Alpha Bank Loan Facility [Member] | Minimum [Member]      
Senior Long-Term Debt [Abstract]      
Market value of vessels plus additional security as percentage of aggregate outstanding loan 1.25    
Tranche A [Member]      
Senior Long-Term Debt [Abstract]      
Maturity date May 21, 2025    
Balloon payment $ 14,960    
Tranche A [Member] | First Four Installments [Member]      
Senior Long-Term Debt [Abstract]      
Number of consecutive payment installments | Installment 4    
Frequency of periodic payment quarterly    
Installment payment $ 1,250    
Tranche A [Member] | Second Four Installments [Member]      
Senior Long-Term Debt [Abstract]      
Number of consecutive payment installments | Installment 4    
Frequency of periodic payment quarterly    
Installment payment $ 1,040    
Tranche A [Member] | Last Eight Installments [Member]      
Senior Long-Term Debt [Abstract]      
Number of consecutive payment installments | Installment 8    
Frequency of periodic payment quarterly    
Installment payment $ 875    
Tranche A [Member] | LIBOR [Member]      
Senior Long-Term Debt [Abstract]      
Margin on variable rate 3.50%    
Tranche B [Member]      
Senior Long-Term Debt [Abstract]      
Maturity date Aug. 11, 2025    
Balloon payment $ 5,700    
Tranche B [Member] | First Four Installments [Member]      
Senior Long-Term Debt [Abstract]      
Number of consecutive payment installments | Installment 4    
Frequency of periodic payment quarterly    
Installment payment $ 700    
Tranche B [Member] | Last Twelve Installments [Member]      
Senior Long-Term Debt [Abstract]      
Number of consecutive payment installments | Installment 12    
Frequency of periodic payment quarterly    
Installment payment $ 375    
Tranche B [Member] | LIBOR [Member]      
Senior Long-Term Debt [Abstract]      
Margin on variable rate 3.25%