v3.26.3
Note 7 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Long-term debt, gross $ 208,131,769 $ 218,624,298
Less: Current portion (18,098,115) (19,548,115)
Long-term portion 190,033,654 199,076,183
Deferred charges, current portion 396,183 396,183
Deferred charges, long-term portion 1,218,643 1,416,732
Long-term debt, current portion net of deferred charges 17,701,932 19,151,932
Long-term debt, long-term portion net of deferred charges 188,815,011 197,659,451
Antwerp Shipping Ltd. / Busan Shipping Ltd. / Keelung Shipping Ltd. / Oakland Shipping Ltd. [Member]    
Long-term debt, gross 26,250,000 28,750,000
Gregos Shipping Ltd [Member]    
Long-term debt, gross 17,150,000 18,300,000
Terataki Shipping, Ltd. [Member]    
Long-term debt, gross 16,400,000 18,000,000
Tender Soul Shipping Ltd. [Member]    
Long-term debt, gross 23,166,769 23,954,298
Leonidas Shipping Ltd. / Dear Panel Shipping Ltd. [Member]    
Long-term debt, gross 42,350,000 44,250,000
Monica Shipowners Ltd. / Stephania Shipping Ltd. [Member]    
Long-term debt, gross 40,500,000 41,625,000
Pepi Shipping Ltd. [Member]    
Long-term debt, gross 18,615,000 19,125,000
Symeon Shipping Ltd. [Member]    
Long-term debt, gross $ 23,700,000 $ 24,620,000