v3.26.1
Long-term Debt (Narrative III)) (Details) - USD ($)
6 Months Ended
Apr. 19, 2023
Jan. 04, 2017
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Sep. 29, 2025
Jul. 06, 2023
Jun. 26, 2023
Apr. 12, 2023
Debt Instrument [Line Items]                  
Fair value of derivatives (Note 7)     $ 0   $ 217,000        
Restricted cash, current     51,250,000 $ 0 53,750,000        
Gain/(loss) from interest rate swap     252,000 (227,000)          
Gain/(loss) on derivative instruments     201,000 (227,000)          
Debt current liabilities     88,670,000   50,281,000        
Export-Import Bank of China [Member] | Secured Debt [Member]                  
Debt Instrument [Line Items]                  
Proceeds from issuance of secured debt   $ 57,240,000              
Periodic payment, principal     $ 954,000            
Maturity date     Jan. 04, 2032            
DNB Bank ASA [Member] | Secured Debt [Member]                  
Debt Instrument [Line Items]                  
Periodic payment, principal     $ 3,846,000            
Maturity date     Dec. 27, 2029            
Notional amount, percent of loan             30.00%    
Interest rate swap, fair value     $ 109,000   361,000        
Loan amount               $ 100,000,000  
Gain/(loss) from interest rate swap     252,000 (227,000)          
Gain/(loss) on derivative instruments     51,000          
Debt current liabilities     38,462,000            
Danish Ship Finance A/S [Member]                  
Debt Instrument [Line Items]                  
Proceeds from issuance of secured debt $ 100,000,000                
Periodic payment, principal 3,301,000   2,533,000            
Balloon installments $ 33,972,000   $ 14,323,000            
Maturity date     Apr. 18, 2031            
Loan amount                 $ 100,000,000
National Bank Of Greece S.A. [Member]                  
Debt Instrument [Line Items]                  
Periodic payment, principal     $ 1,250,000            
Balloon installments     $ 25,000,000            
Maturity date     Sep. 29, 2031            
Loan amount           $ 55,000,000      
Restricted cash, current     $ 51,250,000   $ 53,750,000