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Capital Stock and Changes in Capital Accounts - Series C Preferred Stocks (Details)
 3 Months Ended 6 Months Ended 9 Months Ended
Nov. 29, 2021
USD ($)
$ / shares
shares
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
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 | Preferred stock          
Class of Stock [Line Items]          
Preferred stock, shares outstanding     10,000 10,000  
Preferred stock Series C | Equity Incentive Plan          
Class of Stock [Line Items]          
Number of shares reserved for issuance of restricted shares     1,982    
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%  
Preferred stock Series C | Diana Shipping Inc | Preferred stock          
Class of Stock [Line Items]          
Dividends on preferred stock | $     $ 471,000    
Dividend paid | $   $ 0 $ 300,000    
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