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Long-term bank loans & Revolving facilities (Details Narrative) $ in Thousands |  |  | 1 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 10, 2025 USD ($) | Mar. 14, 2025 USD ($) | Jun. 25, 2025 USD ($) | May 30, 2025 USD ($) | Mar. 26, 2025 USD ($) | Jan. 24, 2025 USD ($) | Jan. 22, 2025 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalent |  |  |  |  |  |  |  | $ 395,636 | $ 462,578 | $ 425,066
Debt Instrument, Covenant Compliance |  |  |  |  |  |  |  | As of June 30, 2025, the Company was in compliance with the applicable financial and other covenants contained in its bank loan agreements and lease financings (Note 7), which are described above and in Note 8 of the Company’s consolidated financial statements for the year ended December 31, 2024, included in the 2024 Annual Report. |  |
Long-Term Debt, Weighted Average Interest Rate, at Point in Time |  |  |  |  |  |  |  | 5.90% | 6.60% |
Debt Instrument, Unused Borrowing Capacity, Fee |  |  |  |  |  |  |  | $ 20 | $ 0 |
Long-Term Debt [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Deferred Debt Issuance Cost, Writeoff |  |  |  |  |  |  |  | 919 | 954 |
Other prepayment expenses |  |  |  |  |  |  |  | 31 | $ 56 |
Minimum liquidity, not legally restricted [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalent |  |  |  |  |  |  |  | 72,500 |  | 75,500
Minimum liquidity, legally restricted [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Restriced cash and cash equivalents, current and non-current |  |  |  |  |  |  |  | 35,130 |  | $ 15,814
ING $185,000 Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  | $ 185,000 |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  | to refinance the outstanding amount of the then existing ING Facility, as discussed below, and for general corporate purposes |  |  |
Repayment installment |  |  |  |  |  |  | 20 |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  | quarterly |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  | $ 8,810 |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  | $ 8,810 |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  | January 2030 |  |  |
Line of Credit Facility, Collateral |  |  |  |  |  |  | is secured by first priority mortgages on the vessels Star Alessia, Star Magnanimus, Star Claudine, Star Ophelia, Star Lyra, Star Bianca, Star Mona, Star Flame, Star Elizabeth, Madredeus, Star Vega, Star Capoeira, Star Carioca, Star Subaru, Star Lambada, Star Macarena and Star Lutas, which were previously part of the collateral securing the then existing ING Facility |  |  |
Fubon $43,000 Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  | $ 43,000 |  |  |  |  |
Description of scope, credit facility |  | to refinance the vessels Peloreus and Leviathan, which were previously under the then existing ING Facility |  |  |  |  |  |  |  |
Repayment installment |  | 20 |  |  |  |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  | quarterly |  |  |  |  |  |  |  |
Line of Credit Facility, Periodic Payment |  | $ 1,075 |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  | $ 21,500 |  |  |  |  |  |  |  |
Line of credit facility, maturity date |  | March 2030 |  |  |  |  |  |  |  |
Line of Credit Facility, Collateral |  | is secured by first-priority mortgages on the aforementioned vessels |  |  |  |  |  |  |  |
ESUN $130,000 Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility | for the post-delivery financing of the five Kamsarmax vessels currently under construction |  |  |  |  |  |  |  |  |
Line of credit facility, maturity date | seven years |  |  |  |  |  |  |  |  |
Line of Credit Facility, Collateral | will be secured by first priority mortgages on the five vessels under construction when delivered |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 130,000 |  |  |  |  |  |  |  |  |
ABN Revolving Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  | to finance working capital requirements |  |  |  |  |  |
Line of credit facility, maturity date |  |  |  | available to be drawn for, and are repayable within, 12 months from the date of the agreement, with an option to extend the repayment for an additional 12 months upon mutual agreement. |  |  |  |  |  |
Line of Credit Facility, Collateral |  |  |  | will be secured by first priority mortgage on the vessels Star Eva, Star Aphrodite, Star Lydia and Star Nicole |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | $ 50,000 |  |  |  |  |  |
NBG Revolving Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  |  | 20,000 |  |
Description of scope, credit facility |  |  | to finance working capital requirements |  |  |  |  |  |  |
Line of credit facility, maturity date |  |  | available for three years after the date of the agreement, and each amount drawn under the facility will be repayable within one year from the date of such borrowing |  |  |  |  |  |  |
Line of Credit Facility, Collateral |  |  | Following the repayment of the First Drawing, each drawn amount under the NBG Revolving Facility, is secured by first priority mortgage on the vessels Star Pauline, Star Borneo, Star Marilena, Star Bueno, Star Angie, Star Kamila, Star Sophia and Star Nina. |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 65,000 |  |  |  |  |  |  |
ABN AMRO $97,150 Facility [Member] | Star Eva Star Aphrodite Star Lydia Star Nicole [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
prepayment amount |  |  |  |  |  |  |  | 35,715 |  |
ING Facility [Member] | Star Bovarius [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
prepayment amount |  |  |  |  |  |  |  | 154,920 |  |
SEB $39,000 Facility [Member] | Star Marilena Star Borneo Star Bueno [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
prepayment amount |  |  |  |  |  |  |  | 7,800 |  |
NBG $151,085 Facility [Member] | Star Omicron Strange Attractor [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
prepayment amount |  |  |  |  |  |  |  | 8,012 |  |
ESUN $100,000 Facility [Member] | Bittern Canary Petrel [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
prepayment amount |  |  |  |  |  |  |  | 13,411 |  |
ABN AMRO $94,100 Facility [Member] | Puffin Bulker [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
prepayment amount |  |  |  |  |  |  |  | 4,593 |  |
ING $94,000 Facility [Member] | Oriole [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
prepayment amount |  |  |  |  |  |  |  | $ 4,724 |  |
All Bank Loans [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate Terms |  |  |  |  |  |  |  | SOFR plus a margin |  |
ABN Revolving Facility and NBG Revolving Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Capacity Available for Trade Purchases |  |  |  |  |  |  |  | $ 95,000 |  |

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