v3.26.3
Earnings Per Common Share (Details) - USD ($)
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]    
Net (loss) / income, net of taxes $ 96,030,327 $ (17,008,587)
Less: Net (income) / loss attributable to non-controlling interest in subsidiaries (30,550,611) 3,191,062
Net (loss) / income attributable to Castor Maritime Inc. 65,479,716 (13,817,525)
Less: Dividend on Series D Preferred Shares (2,500,000) (2,513,889)
Less: Deemed dividend on Series D Preferred Shares (1,620,049) (1,451,187)
Net income / (loss) attributable to common shareholders of Castor Maritime Inc. 61,359,667 (17,782,601)
Dividend on Series D Preferred Shares 2,500,000 2,513,889
Deemed dividend on Series D Preferred Shares 1,620,049 1,451,187
Effect of subsidiary share based expense on diluted EPS (303,605) 0
Net income / (loss) attributable to common shareholders, diluted $ 65,176,111 $ (13,817,525)
Weighted average number of common shares outstanding, basic (in shares) 9,662,354 9,662,354
Effect of dilutive shares (in shares) 48,512,730 0
Weighted average number of common shares outstanding, diluted (in shares) 58,175,084 9,662,354
Earnings / (loss) per common share, basic (in dollars per share) $ 6.35 $ (1.84)
Earnings / (loss) per common share, diluted (in dollars per share) $ 1.12 $ (1.84)
Series D Preferred Shares [Member]    
Earnings Per Share [Abstract]    
Less: Deemed dividend on Series D Preferred Shares $ (1,620,049) $ (1,451,187)
Deemed dividend on Series D Preferred Shares $ 1,620,049 $ 1,451,187