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Lease financing (Details Narrative) - USD ($) $ in Thousands | 4 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 30, 2019 | Jul. 10, 2019 | Sep. 30, 2020 | Sep. 29, 2020 | Sep. 18, 2020 | Dec. 31, 2023 | Dec. 31, 2018
SK Shipholding S.A. [Member] | Star Lutas [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale Leaseback Transaction, Date |  |  |  |  |  | September 3, 2020 |
Sale Leaseback Transaction, Lease Terms |  |  |  |  |  | seven-year |
Sale Leaseback Transaction, Gross Proceeds, Financing Activities |  |  |  |  | $ 16,000 |  |
Sale and Leaseback Transaction, Description |  |  |  |  |  | to pay the vessel’s remaining amount under the then existing loan agreement |
Repayment date |  |  |  |  |  | September 2023 |
SK Shipholding S.A. [Member] | Star Pisces [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale Leaseback Transaction, Date |  |  |  |  |  | March 29, 2019 |
Sale Leaseback Transaction, Lease Terms |  |  |  |  |  | seven-year |
Sale Leaseback Transaction, Gross Proceeds, Financing Activities | $ 19,125 |  |  |  |  |  |
Sale and Leaseback Transaction, Description |  |  |  |  |  | to pay the remaining amount under the then existing loan agreement |
Repayment date |  |  |  |  |  | May 2023 |
SPDB Financial Leasing Co. Ltd [Member] | Mackenzie, Kennadi, Honey Badger, Wolverine and Star Antares [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale Leaseback Transaction, Date |  |  |  |  |  | September 21, 2020 |
Sale Leaseback Transaction, Gross Proceeds, Financing Activities |  |  | $ 76,500 |  |  |  |
Sale and Leaseback Transaction, Description |  |  |  |  |  | to pay the remaining amount under the then existing loan agreement |
Repayment date |  |  |  |  |  | September 2023 |
ICBC Financial Leasing Co. Ltd [Member] | Gargantua Goliath And Maharaj [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale Leaseback Transaction, Date |  |  |  |  |  | September 25, 2020 |
Sale Leaseback Transaction, Gross Proceeds, Financing Activities |  |  |  | $ 93,150 |  |  |
Sale and Leaseback Transaction, Description |  |  |  |  |  | to pay the remaining amount under the then existing loan agreement |
Repayment date |  |  |  |  |  | September 2023 |
Kyowa Sansho Co. Ltd. [Member] | Star Challenger [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale Leaseback Transaction, Date |  |  |  |  |  | July 10, 2019 |
Sale Leaseback Transaction, Lease Terms |  |  |  |  |  | eleven-year |
Sale Leaseback Transaction, Gross Proceeds, Financing Activities |  | $ 15,000 |  |  |  |  |
Sale and Leaseback Transaction, Description |  |  |  |  |  | to pay the remaining amount under the then existing loan agreement |
Affiliate of Kyowa Sansho [Member] | Star Fighter [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale Leaseback Transaction, Date |  |  |  |  |  | December 2018 |
Sale Leaseback Transaction, Lease Terms |  |  |  |  |  | ten years |
Sale Leaseback Transaction, Gross Proceeds, Financing Activities |  |  |  |  |  |  | $ 16,125
Sale and Leaseback Transaction, Description |  |  |  |  |  | to pay the remaining amount under the then existing loan agreement |
Vessel purchase price obligation |  |  |  |  |  | $ 2,450 |

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