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Capital Stock and Changes in Capital Accounts - Series C Preferred Stock (Details)
 6 Months Ended 9 Months Ended
Nov. 29, 2021
USD ($)
$ / shares
shares
Jun. 30, 2022
USD ($)
D
$ / shares
shares
Dec. 31, 2021
USD ($)
D
$ / shares
shares
Nov. 30, 2021
$ / shares
Class of Stock [Line Items]        
Preferred stock, shares issued   510,000 510,000  
Preferred stock, shares outstanding   510,000 510,000  
Preferred stock, par value | $ / shares $ 0.01 $ 0.01 $ 0.01 $ 0.01
Dividends on preferred stock | $   $ 471,000    
Diana Shipping Inc        
Class of Stock [Line Items]        
Cumulative preferred dividend rate 8.00%      
Conversion price | $ / shares $ 6.50      
Trading day trailing VWAP of common shares | $ 10      
Preferred stock Series C        
Class of Stock [Line Items]        
Preferred stock, shares issued 10,000 10,000 10,000  
Preferred stock, shares outstanding 10,000   10,000  
Preferred stock, par value | $ / shares   $ 0.01 $ 0.01  
Preferred stock, liquidation preference | $   $ 1,000,000 $ 1,000,000  
Cumulative preferred dividend rate 8.00%      
Conversion price | $ / shares $ 6.50      
Dividends on preferred stock | $     $ 69,000  
Preferred stock Series C | Diana Shipping Inc        
Class of Stock [Line Items]        
Preferred stock, shares issued 10,000      
Trading day trailing VWAP of common shares | D   10 10  
Maximum percentage of outstanding common shares that can be held by related party after share conversion   49.00% 49.00%  
Series A Participating Preferred Stock        
Class of Stock [Line Items]        
Preferred stock, shares issued 0   0  
Preferred stock, shares outstanding 0   0  
Preferred stock, liquidation preference | $ $ 1,000,000   $ 1,000,000