v3.26.1
Leases, Lease Arrangements as Lessee (Details)
12 Months Ended
Dec. 10, 2020
USD ($)
Vessel
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 01, 2020
USD ($)
Bareboat Chartered-in Vessels [Abstract]          
Discount rate used to calculate present value of lease payments 6.72%        
Revenues   $ 80,415,000 $ 86,127,000 $ 82,949,000  
Deposit asset   0 2,000,000    
Navigare Lease [Member]          
Bareboat Chartered-in Vessels [Abstract]          
Minimum percentage of voting rights 50.10%        
Minimum liquidity requirement $ 4,000,000        
Operating lease ROU asset 45,765,000        
Operating lease liability 43,759,000        
Initial direct costs 1,666,000        
Loss on sale of vessels $ (340,000)        
Number of vessels sold | Vessel 2        
Cash paid for operating leases   6,950,000 10,039,000    
Revenues   $ 16,782,000 16,831,000    
Deposit asset     2,000,000    
Navigare Lease [Member] | M/T Eco Beverly Hills [Member]          
Bareboat Chartered-in Vessels [Abstract]          
Term of lease         5 years
Daily bareboat hire rate for first two years         $ 16,750
Daily bareboat hire rate for next two years         14,000
Daily bareboat hire rate for fifth year         $ 10,000
Deposit asset     1,000,000    
Navigare Lease [Member] | M/T Eco Bel Air [Member]          
Bareboat Chartered-in Vessels [Abstract]          
Term of lease 5 years        
Daily bareboat hire rate for first two years $ 16,750        
Daily bareboat hire rate for next two years 14,000        
Daily bareboat hire rate for fifth year $ 10,000        
Deposit asset     $ 1,000,000