v3.26.1
Capital Stock and Changes in Capital Accounts (Narrative Stocks) (Details)
 6 Months Ended
Jun. 18, 2026
USD ($)
$ / shares
Mar. 18, 2026
USD ($)
$ / shares
Jun. 24, 2025
USD ($)
$ / shares
Mar. 21, 2025
USD ($)
$ / shares
Jan. 07, 2025
USD ($)
shares
Jun. 30, 2026
USD ($)
shares
Item
$ / shares
Jun. 30, 2025
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 02, 2024
$ / shares
shares
Dec. 14, 2023
shares
Class Of Stock [Line Items]                    
Cash dividends on preferred stock | $           $ 2,884,000 $ 2,884,000      
Payments for repurchase of common stock | $           $ 0 $ 23,048,000      
Dividend paid on common stock per share | $ / shares $ 0.01 $ 0.01 $ 0.01 $ 0.01   $ 0.02 $ 0.02      
Cash dividend | $ $ 1,244,000 $ 1,236,000 $ 1,158,000 $ 1,158,000   $ 2,480,000 $ 2,316,000      
Issuance of stock | $           2,040,000 16,000      
Warrant liability | $           0   $ 1,330,000    
Gain on warrants | $           1,086,000 $ (515,000)      
Warrant liability, current (Note 10(g)) | $           2,352,000   $ 0    
If All Warrants Are Exercised [Member]                    
Class Of Stock [Line Items]                    
Issuance of stock | $           85,733,000        
Proceeds from warrant exercises | $           $ 90,452,000        
Shares to be issued upon the exercise of warrants           37,221,648        
Tender Offer [Member]                    
Class Of Stock [Line Items]                    
Stock repurchased shares         11,442,645          
Payments for repurchase of common stock | $         $ 23,048,000          
Tender offer, price per share | $ / shares                 $ 2.00  
Tender offer, share to purchase                 15,000,000  
Series D Preferred Stock [Member] | Mrs. Semiramis Paliou                    
Class Of Stock [Line Items]                    
Cash dividends on preferred stock | $           $ 0        
Preferred Stock [Member]                    
Class Of Stock [Line Items]                    
Preferred stock, Shares authorized           50,000,000   50,000,000    
Preferred stock, Par value per share | $ / shares           $ 0.01   $ 0.01    
Preferred Stock [Member] | Series A Participating Preferred Stock                    
Class Of Stock [Line Items]                    
Preferred stock, Shares authorized           1,000,000   1,000,000    
Issuance of preferred stock, shares           0   0    
Preferred stock, Shares outstanding           0   0    
Preferred Stock [Member] | Series B Preferred Stock [Member]                    
Class Of Stock [Line Items]                    
Preferred stock, Shares authorized           5,000,000   5,000,000    
Preferred stock, Par value per share | $ / shares           $ 0.01   $ 0.01    
Issuance of preferred stock, shares           2,600,000   2,600,000    
Preferred stock, Shares outstanding           2,600,000   2,600,000    
Shares issued price per share | $ / shares           $ 25.00   $ 25.00    
Preferred stock liquidation preference per share | $ / shares           $ 25.00   $ 25.00    
Preferred stock voting rights           Holders of Series B Preferred Shares have no voting rights other than the ability, subject to certain exceptions, to elect one director if dividends for six quarterly dividend periods (whether or not consecutive) are in arrears and certain other limited protective voting rights.        
Preferred stock dividend rate percentage           8.875%        
Preferred stock dividend rate per dollar amount | $ / shares           $ 2.21875        
Preferred stock, Redemption price per share | $ / shares           $ 25.00        
Preferred Stock [Member] | Series C Preferred Stock [Member]                    
Class Of Stock [Line Items]                    
Preferred stock, Shares authorized           10,675   10,675    
Issuance of preferred stock, shares           10,675   10,675    
Preferred stock, Shares outstanding           10,675   10,675    
Shares issued price per share | $ / shares           $ 0.01   $ 0.01    
Preferred stock voting rights           The Series C Preferred Stock votes with the common shares of the Company, and each share entitles the holder thereof to 1,000 votes on all matters submitted to a vote of the shareholders of the Company.        
Preferred stock number of voting rights           1,000        
Preferred Stock [Member] | Series D Preferred Stock [Member]                    
Class Of Stock [Line Items]                    
Preferred stock, Shares authorized           400   400    
Preferred Stock [Member] | Series D Preferred Stock [Member] | Mrs. Semiramis Paliou                    
Class Of Stock [Line Items]                    
Preferred stock, Par value per share | $ / shares           $ 0.01   $ 0.01    
Issuance of preferred stock, shares           400   400    
Preferred stock, Shares outstanding           400   400    
Preferred stock voting rights           The Series D Preferred Stock vote with the common shares of the Company, and each share of the Series D Preferred Stock entitles the holder thereof to up to 200,000 votes,        
Preferred stock number of voting rights | Item           200,000        
Percent of total number of votes entitled to vote on any matter put to shareholders           36.00%        
Percent of total number of votes entitled to be cast on matters out to shareholders           36.00%        
Common Stock [Member]                    
Class Of Stock [Line Items]                    
Issuance of new shares           876,267 12,802      
Stock repurchased shares             11,442,645      
Issuance of stock | $           $ 9,000 $ 0      
Warrant [Member]                    
Class Of Stock [Line Items]                    
Issuance of new shares           876,267 12,802      
Shares issued price per share | $ / shares           $ 2.33 $ 1.24      
Issuance of stock | $           $ 2,040,000 $ 16,000      
Number of warrants exercised           521,143 7,825      
Number of warrants outstanding                   22,613,070
Number of shares permitted to purchase from warrants           1.68852        
Proceeds from warrant exercises | $           $ 2,097,000 $ 69,000      
Price per share | $ / shares           $ 4        
Warrant liability | $               $ 1,330,000    
Gain on warrants | $           $ 1,086,000 $ (515,000)      
Warrant liability, current (Note 10(g)) | $           $ 2,352,000