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Significant Accounting policies (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Provision for doubtful debt $ 677,000 $ 629,000 $ 373,000
Loss on write-down of inventory $ 17,326,000 (0) (0)
Depreciation method straight-line    
Useful life 25 years    
Salvage value per light weight ton $ 300 300  
Revenue For Scrubber Fitted Vessels [Member]      
Operating Lease, Variable Lease Income $ 99,104,000 $ 47,824,000 $ 26,758,000