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Vessel Revenue (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Vessel Revenue [Abstract]      
Accounts receivable trade, net $ 729   $ 896
Deferred revenue 2,081   2,136
Deferred Revenue, Non-current [Member]      
Vessel Revenue [Abstract]      
Deferred operating lease revenue and premiums for energy devices $ 161   $ 254
Revenues [Member] | Customer Concentration Risk [Member] | Customers Accounting for More than 10% of Revenues [Member]      
Vessel Revenue [Abstract]      
Concentration risk percentage 70.00% 84.00%  
Revenues [Member] | Customer Concentration Risk [Member] | Customer A [Member]      
Vessel Revenue [Abstract]      
Concentration risk percentage 34.00% 26.00%  
Revenues [Member] | Customer Concentration Risk [Member] | Customer B [Member]      
Vessel Revenue [Abstract]      
Concentration risk percentage 23.00% 26.00%  
Revenues [Member] | Customer Concentration Risk [Member] | Customer C [Member]      
Vessel Revenue [Abstract]      
Concentration risk percentage 13.00% 18.00%  
Revenues [Member] | Customer Concentration Risk [Member] | Customer D [Member]      
Vessel Revenue [Abstract]      
Concentration risk percentage 0.00% 14.00%