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Long-term bank loans - Pre - Existing Loan Facilities Part I (Details Narrative) $ in Thousands | 3 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended | 7 Months Ended | 8 Months Ended | 9 Months Ended | 10 Months Ended | 11 Months Ended | 12 Months Ended |  |  |  |  |
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Mar. 31, 2019 USD ($) | Apr. 30, 2019 USD ($) | May 30, 2023 USD ($) | Jul. 12, 2023 USD ($) | Jun. 30, 2022 USD ($) | Jul. 31, 2020 USD ($) | Jul. 31, 2019 USD ($) | Aug. 31, 2021 USD ($) | Oct. 04, 2023 USD ($) | Sep. 30, 2023 USD ($) | Oct. 31, 2018 USD ($) | Nov. 30, 2023 USD ($) | Nov. 30, 2019 USD ($) | Dec. 31, 2024 USD ($) | Mar. 31, 2024 USD ($) | Feb. 29, 2024 USD ($) | Feb. 28, 2024 USD ($) | Dec. 31, 2023 USD ($) | Mar. 31, 2023 USD ($)
SEB $30,000 Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Initiation Date |  |  |  |  |  |  |  |  |  |  |  |  |  | May 25, 2023 |  |  |  |  |
Proceeds from Lines of Credit |  |  | $ 30,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to replenish the funds used in May 2023 to prepay the then outstanding loan facility of the vessel Star Aquarius, and the then outstanding lease amount of the vessel Star Pisces |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 413 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,750 |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | May 2028 |  |  |  |  |
Description of collateral |  |  |  |  |  |  |  |  |  |  |  |  |  | secured by first priority mortgages on the vessels Star Aquarius and Star Pisces |  |  |  |  |
Nordea $50,000 Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Initiation Date |  |  |  |  |  |  |  |  |  |  |  |  |  | Jul. 10, 2023 |  |  |  |  |
Proceeds from Lines of Credit |  |  |  | $ 50,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to replenish the funds used in May 2023 to prepay the then aggregate outstanding loan amount of the vessels Star Eleni and Star Leo |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | July 2028 |  |  |  |  |
Description of collateral |  |  |  |  |  |  |  |  |  |  |  |  |  | secured by first priority mortgages on the vessels Star Eleni and Star Leo |  |  |  |  |
Nordea $50,000 Facility [Member] | Tranche A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 545 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,100 |  |  |  |  |
Nordea $50,000 Facility [Member] | Tranche B [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | 528 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,440 |  |  |  |  |
ESUN $140,000 Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Initiation Date |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 26, 2023 |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  |  |  | $ 140,000 |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to replenish the funds used to prepay the then aggregate outstanding lease amounts of the vessels Mackenzie, Kennadi, Honey Badger, Wolverine, Star Antares, Gargantua, Goliath and Maharaj |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 28 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,825 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 32,900 |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | October 2030 |  |  |  |  |
Description of collateral |  |  |  |  |  |  |  |  |  |  |  |  |  | is secured by first priority mortgages on the aforementioned vessels |  |  |  |  |
Amended and restated ING Facility [Member] | Star Claudine, Star Ophelia, Star Lyra, Star Bianca, Star Flame and Star Mona [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  | $ 70,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to refinance all outstanding amounts under the then existing lease agreements of the vessels Star Claudine, Star Ophelia, Star Lyra, Star Bianca, Star Flame and Star Mona |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 24 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Amended and restated ING Facility [Member] | Madredeus, Star Vega and Eneti [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to refinance the amounts under the then existing lease agreements of the vessels Star Subaru, Star Bovarius, Star Carioca, Star Capoeira, Star Macarena, Star Lambada and Star Athena acquired from Eneti Inc. and the Star Vega and to refinance the then outstanding loan amount of the vessel Madredeus |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 9 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | due five years after their drawdown |  |  |  |  |
Debt instrument, prepayment amount |  |  |  |  |  |  |  |  |  |  |  | $ 9,139 |  |  |  |  | $ 9,111 |  |
Amended and restated ING Facility [Member] | Madredeus, Star Vega and Eneti [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  | $ 9,895 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 261 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,649 |  |  |  |  |
Amended and restated ING Facility [Member] | Madredeus, Star Vega and Eneti [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  | $ 12,368 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | 412 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,746 |  |  |  |  |
Amended and restated ING Facility [Member] | Tranche A [Member] | Star Magnanimus and Star Alessia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit | $ 32,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | 535 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,120 |  |  |  |  |
Amended and restated ING Facility [Member] | Tranche B [Member] | Star Magnanimus and Star Alessia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  | $ 17,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | 311 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,700 |  |  |  |  |
Amended and restated ING Facility [Member] | Tranche A and B [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  |  |  |  |  | $ 22,500 |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to refinance the outstanding amount under the then existing loan agreement of the vessels Peloreus and Leviathan |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 28 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 469 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,375 |  |  |  |  |
Amended and restated ING Facility [Member] | Tranche A and B [Member] | Star Magnanimus and Star Alessia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to refinance the outstanding amounts under the then existing lease agreements of the vessels Star Magnanimus and Star Alessia |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 28 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | due in seven years after the drawdown date |  |  |  |  |
Amended and restated ING Facility [Member] | Tranche A and B [Member] | Star Elizabeth and Star Pavlina [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  |  | $ 20,000 |  |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | due five years after their drawdown and were used to finance part of the acquisition cost of the vessels Star Elizabeth and Star Pavlina |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 294 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,118 |  |  |  |  |
Debt instrument, prepayment amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 18,235
Amended and restated ING Facility [Member] | Tranche C and D [Member] | Peloreus and Leviathan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  | $ 1,400 |  |  |  |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to finance the acquisition and installation of scrubber equipment for the vessels Peloreus and Leviathan |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,000 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 88 |  |  |  |  |
Amended and restated ING Facility [Member] | Tranche C and D [Member] | Star Magnanimus and Star Alessia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,400 |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to finance the acquisition and installation of scrubber equipment for the vessels Star Magnanimus and Star Alessia |  |  |  |  |
Number of Loan Tranches |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 16 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 88 |  |  |  |  |
Fifth amended and restated ING Facility with ING Bank N.V. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  |  |  |  | $ 15,000 |  |  |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to refinance the outstanding amount under the then existing lease agreement of the vessel Star Lutas |  |  |  |  |
Repayment installment |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |
Line of Credit Facility, Frequency of Payments |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly |  |  |  |  |
Line of Credit Facility, Periodic Payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 405 |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,892 |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | September 2028 |  |  |  |  |
Sixth amended and restated ING Facility with ING Bank N.V. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  |  |  |  |  |  |  |  | $ 62,000 |  |  |  |  |  |  |
Description of scope, credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | to finance part of the Second Oaktree Share Repurchase |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  | November 2024 |  |  |  |  |
Debt instrument, prepayment amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 53,500 | $ 3,000 |  | $ 3,500 |
ING Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of collateral |  |  |  |  |  |  |  |  |  |  |  |  |  | is secured by the vessels Peloreus, Leviathan, Star Magnanimus, Star Alessia, Star Claudine, Star Ophelia, Star Lyra, Star Bianca, Star Flame, Star Mona, Star Elizabeth, Madredeus, Star Vega, Star Capoeira, Star Carioca, Star Subaru, Star Lambada, Star Macarena and Star Lutas |  |  |  |  |

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