v3.22.2.2
Transactions with related parties - Diana Shipping Services S.A., or DSS (Details) - USD ($)
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]          
Related Party Transaction, Expenses from Transactions with Related Party $ 411,000        
Due to related parties $ 210,000     $ 59,000  
OceanPal Inc. Predecessors          
Related Party Transaction [Line Items]          
Related Party Transaction, Expenses from Transactions with Related Party   $ 377,671 $ 378,000    
Due to related parties   22,930     $ 115,280
Diana Shipping Services S.A., or DSS | OceanPal Inc. Predecessors          
Related Party Transaction [Line Items]          
Due to related parties   22,930     $ 115,280
Diana Shipping Services S.A., or DSS | OceanPal Inc. Predecessors | Management fees to related party          
Related Party Transaction [Line Items]          
Related Party Transaction, Expenses from Transactions with Related Party   302,187 378,000    
Diana Shipping Services S.A., or DSS | OceanPal Inc. Predecessors | Voyage expenses          
Related Party Transaction [Line Items]          
Related Party Transaction, Expenses from Transactions with Related Party   $ 94,672 $ 93,343