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Long-term bank loans (Details Narrative)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Debt Instrument [Line Items]      
Cash and Cash Equivalents, at Carrying Value $ 269,754 $ 450,285 $ 183,211
Debt Instrument, Covenant Compliance As of December 31, 2022, the Company was in compliance with the applicable financial and other covenants contained in its bank loan agreements and lease financings described in Note 6.    
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 3.21% 2.94% 3.63%
Debt Instrument, Unused Borrowing Capacity, Fee $ 7 $ 93 $ 65
Gain amount from valuation instrument   307  
Gain on hedging instrument 9,474 436  
Long-Term Debt [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 1,103,594    
Write off of Deferred Debt Issuance Cost 2,192 3,612 3,701
Expenses on debt prepayments 3,218 388 $ 1,223
Minimum liquidity, not legally restricted [Member]      
Debt Instrument [Line Items]      
Cash and Cash Equivalents, at Carrying Value 64,000 64,000  
Minimum liquidity, legally restricted [Member]      
Debt Instrument [Line Items]      
Restriced cash and cash equivalents, current and non-current $ 16,590 22,986  
Amended and restated ING $210,600 Facility [Member] | Star Claudine, Star Ophelia, Star Lyra, Star Bianca, Star Flame and Star Mona [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to refinance all outstanding amounts under the then existing lease agreements with CMBL of the vessels    
Number of Loan Tranches 6    
Draw down date July 2020    
Repayment installment 24    
Line of Credit Facility, Frequency of Payments quarterly    
Proceeds from Lines of Credit $ 70,000    
Amended and restated ING $210,600 Facility [Member] | ING $310,600 Facility [member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Jun. 28, 2022    
Description of scope, credit facility in order to increase the financing by $100,000 and to include additional borrowers under the existing agreement    
Line of Credit Facility, Maximum Borrowing Capacity $ 100,000    
Number of Loan Tranches 9    
Draw down date June 30, 2022    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, 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, Star Pavlina, Madredeus, Star Vega, Star Capoeira, Star Carioca, Star Athena, Star Subaru, Star Bovarius, Star Lambada and Star Macarena.    
Amended and restated ING $210,600 Facility [Member] | ING $310,600 Facility [member] | Minimum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 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 $210,600 Facility [Member] | ING $310,600 Facility [member] | Maximum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity 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 $210,600 Facility [Member] | Tranche A and B [Member] | Star Elizabeth and Star Pavlina [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to finance part of the acquisition cost of the vessels    
Number of Loan Tranches 2    
Draw down date August 2021    
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    
Proceeds from Lines of Credit $ 20,000    
Amended and restated ING $210,600 Facility [Member] | October 2018 [Member] | Peloreus and Leviathan [Member] | Tranche A and B [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to refinance the outstanding amount under the then existing loan agreement of the vessels    
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    
Proceeds from Lines of Credit $ 22,500    
Amended and restated ING $210,600 Facility [Member] | July 2019 [Member] | Peloreus and Leviathan [Member] | Tranche A and B [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to finance the acquisition and installation of scrubber equipment for the vessels    
Number of Loan Tranches 2    
Repayment installment 16    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 88    
Proceeds from Lines of Credit $ 1,400    
Amended and restated ING $210,600 Facility [Member] | March and April 2019 [Member] | Star Magnanimus and Star Alessia [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to refinance the outstanding amounts under the then existing lease agreements of the vessels    
Number of Loan Tranches 2    
Repayment installment 28    
Line of Credit Facility, Frequency of Payments quarterly    
Amended and restated ING $210,600 Facility [Member] | March 2019 [Member] | Star Magnanimus and Star Alessia [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment $ 535    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 17,120    
Proceeds from Lines of Credit 32,100    
Amended and restated ING $210,600 Facility [Member] | April 2019 [Member] | Star Magnanimus and Star Alessia [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment 311    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 8,700    
Proceeds from Lines of Credit $ 17,400    
Amended and restated ING $210,600 Facility [Member] | May and November 2019 [Member] | Star Magnanimus and Star Alessia [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to finance the acquisition and installation of scrubber equipment for the vessels    
Number of Loan Tranches 2    
Repayment installment 16    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 88    
Proceeds from Lines of Credit $ 1,400    
Citi $100,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Jul. 05, 2022    
Line of Credit Facility, Maximum Borrowing Capacity $ 100,000    
Number of Loan Tranches 2    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Maturity date July 2027    
Line of Credit Facility, Collateral secured by the 12 aforementioned vessels.    
Citi $100,000 Facility [Member] | Tranche A [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to replenish the funds used in June for the extinguishment of the outstanding amounts under the lease agreements with CMBL for the vessels Star Sirius, Laura, Idee Fixe, Kaley and Roberta    
Line of Credit Facility, Maximum Borrowing Capacity $ 48,341    
Draw down date July 18, 2022    
Line of Credit Facility, Periodic Payment $ 1,257    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 23,203    
Citi $100,000 Facility [Member] | Tranche B [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to refinance the aggregate outstanding amount under the lease agreements with CMBL of the vessels Star Apus, Star Cleo, Star Columba, Star Dorado, Star Hydrus, Star Pegasus and Star Pyxis    
Line of Credit Facility, Maximum Borrowing Capacity $ 51,659    
Draw down date August 29, 2022    
Line of Credit Facility, Periodic Payment $ 1,343    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 24,796    
SEB $42,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Aug. 03, 2022    
Line of Credit Facility, Maximum Borrowing Capacity $ 42,000    
Number of Loan Tranches 3    
Draw down date August 3, 2022    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Maturity date August 2027    
Line of Credit Facility, Collateral secured by the vessels Amami, Mercurial Virgo and Star Calypso.    
SEB $42,000 Facility [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment $ 354    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 5,730    
SEB $42,000 Facility [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment 434    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 7,028    
SEB $42,000 Facility [Member] | Tranche A [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity 12,800    
SEB $42,000 Facility [Member] | Tranche B [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 13,500    
SEB $42,000 Facility [Member] | Tranche A and B [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to refinance the aggregate outstanding amount of $29,295 under the then existing loan facility with HSBC France (the “HSBC 80,000 Facility”)    
SEB $42,000 Facility [Member] | Tranche C [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to refinance the outstanding amount of $13,795 under the then existing loan facility with a wholly owned subsidiary of NTT Finance Corporation (the “NTT $17,600 Facility”)    
Line of Credit Facility, Maximum Borrowing Capacity $ 15,700    
CTBC $25,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Nov. 22, 2022    
Description of scope, credit facility to refinance the outstanding amount under the then existing lease agreement of the vessel Star Libra    
Line of Credit Facility, Maximum Borrowing Capacity $ 25,000    
Draw down date November 30, 2022    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 563    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 13,750    
Maturity date November 2027    
Line of Credit Facility, Collateral is secured by the vessel Star Libra    
NTT $24,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Dec. 08, 2022    
Description of scope, credit facility to refinance the outstanding amount of the Star Virgo under the loan facility with Citibank (the “Citibank $62,600 Facility”    
Line of Credit Facility, Maximum Borrowing Capacity $ 24,000    
Draw down date December 16, 2022    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 600    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 12,000    
Maturity date December 2027    
Line of Credit Facility, Collateral is secured by the vessel Star Virgo    
ABN AMRO $24,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Dec. 19, 2022    
Description of scope, credit facility to refinance the outstanding amount under the loan facility with SEB of the vessel Star Sienna    
Line of Credit Facility, Maximum Borrowing Capacity $ 24,000    
Draw down date December 22, 2022    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 500    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 14,000    
Maturity date December 2027    
Line of Credit Facility, Collateral is secured by the vessel Star Sienna    
Standard Chartered $47,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Dec. 29, 2022    
Description of scope, credit facility to replenish the funds used in November for the extinguishment of the outstanding amounts of the vessels i) Star Marisa under the Citibank $62,600 Facility and ii) Star Laetitia under the loan facility with SEB, respectively    
Line of Credit Facility, Maximum Borrowing Capacity $ 47,000    
Number of Loan Tranches 2    
Draw down date January 2023    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Maturity date December 2027    
Line of Credit Facility, Collateral is secured by the two aforementioned vessels    
Debt Instrument, Unused Borrowing Capacity, Amount $ 47,000    
Standard Chartered $47,000 Facility [Member] | Tranche A [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity 22,829    
Line of Credit Facility, Periodic Payment 476    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 13,317    
Standard Chartered $47,000 Facility [Member] | Tranche B [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity 24,171    
Line of Credit Facility, Periodic Payment 465    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 14,874    
SEB $39,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Jan. 22, 2021    
Description of scope, credit facility to finance the cash consideration for the E.R. Acquisition Vessels    
Line of Credit Facility, Maximum Borrowing Capacity $ 39,000    
Draw down date January 25, 2021    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 1,950    
Line of Credit Facility, Collateral is secured by a first priority mortgage on the vessels Star Bueno, Star Borneo and Star Marilena    
Line of credit facility, maturity date January 2026    
NBG $125,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Jun. 24, 2021    
Description of scope, credit facility to refinance the outstanding amount under the then existing facility with DNB Bank ASA (DNB)    
Line of Credit Facility, Maximum Borrowing Capacity $ 125,000    
Draw down date June 28, 2021    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 3,750    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 50,000    
Line of Credit Facility, Collateral is secured by first priority mortgages on vessels Big Bang, Big Fish, Pantagruel, Star Nasia, Star Danai, Star Renee, Star Markella, Star Laura, Star Moira, Star Jennifer, Star Mariella, Star Helena, Star Maria, Star Triumph, Star Angelina and Star Gwyneth.    
Line of credit facility, maturity date June 2026    
Proceeds from Lines of Credit $ 125,000    
NBG $125,000 Facility [Member] | Strange Attractor [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment 3,585    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 46,969    
Prepayment date September 2022    
Debt instrument, prepayment amount $ 5,511    
DNB $107,500 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Sep. 28, 2021    
Description of scope, credit facility to refinance the aggregate outstanding amount of the financed vessels under the then existing facilities with (i) Credit Agricole Corporate and Investment Bank), (ii) Piraeus Bank and (iii) Bank of Tokyo    
Line of Credit Facility, Maximum Borrowing Capacity $ 107,500    
Draw down date September 29, 2021    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 3,707    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 33,362    
Line of Credit Facility, Collateral is secured by first priority mortgages on the vessels Star Luna, Star Astrid, Star Genesis, Star Electra, Star Glory Star Monica, Star Borealis and Star Polaris.    
Line of credit facility, maturity date September 2026    
Proceeds from Lines of Credit $ 107,500    
ABN AMRO $97,150 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Oct. 27, 2021    
Description of scope, credit facility to refinance the outstanding amount under the then existing facility with Citibank    
Line of Credit Facility, Maximum Borrowing Capacity $ 97,150    
Number of Loan Tranches 2    
Draw down date October 29, 2021    
Line of Credit Facility, Collateral is secured by a first priority mortgage on the vessels Star Pauline, Star Angie, Star Sophia, Star Georgia, Star Kamila, Star Nina, Star Eva, Star Paola, Star Aphrodite, Star Lydia and Star Nicole.    
Proceeds from Lines of Credit $ 97,150    
ABN AMRO $97,150 Facility [Member] | Tranche A [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 68,950    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 2,250    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 23,950    
Line of credit facility, maturity date October 2026    
ABN AMRO $97,150 Facility [Member] | Tranche B [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 28,200    
Repayment installment 12    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 2,350    
Line of credit facility, maturity date October 2024    
Credit Agricole $62,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Oct. 29, 2021    
Description of scope, credit facility to refinance the aggregate outstanding amount under the then existing loan agreements with Alpha Bank S.A. and BNP Paribas and to prepay an amount of $1,999 under the Atradius Facility (discussed below), in connection with the vessels Star Despoina and Star Piera    
Line of Credit Facility, Maximum Borrowing Capacity $ 62,000    
Draw down date November 2, 2021    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 8,800    
Line of Credit Facility, Collateral is secured by the vessels Star Martha, Star Sky, Stardust, Star Despoina and Star Piera.    
Line of credit facility, maturity date November 2026    
Proceeds from Lines of Credit $ 62,000    
Credit Agricole $62,000 Facility [Member] | First 3 installments [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment 3,000    
Credit Agricole $62,000 Facility [Member] | Remaining 17 installments [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment $ 2,600    
HSBC Working Capital Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Feb. 06, 2020    
Description of scope, credit facility in order to finance working capital requirements    
Line of Credit Facility, Maximum Borrowing Capacity $ 30,000    
Line of credit facility, maturity date February 2022    
Long-Term Debt, Gross   $ 0  
DSF $55,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Mar. 26, 2020    
Line of Credit Facility, Maximum Borrowing Capacity $ 55,000    
Number of Loan Tranches 2    
Debt Instrument, Interest Rate Terms fixed rate of 0.581% per annum    
DSF $55,000 Facility [Member] | Tranche A and B [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility used to refinance the outstanding amounts under the then existing lease agreements of the vessels Star Eleni and Star Leo    
Line of Credit Facility, Maximum Borrowing Capacity $ 27,500    
Draw down date March 30, 2020    
Repayment installment 10    
Line of Credit Facility, Frequency of Payments semi-annual    
Line of Credit Facility, Periodic Payment $ 1,058    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 16,923    
Line of Credit Facility, Collateral is secured by a first priority mortgage on the two vessels    
Line of credit facility, maturity date April 2025    
CEXIM $57,564 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Dec. 01, 2020    
Description of scope, credit facility to refinance (i) the outstanding amount of the vessels Star Gina 2GR, Star Charis and Star Suzanna under the then existing facility with DNB and (ii) the outstanding amount under the lease agreement with CMBL of the vessel Star Wave    
Line of Credit Facility, Maximum Borrowing Capacity $ 57,564    
Number of Loan Tranches 4    
Draw down date December 2020    
Line of Credit Facility, Collateral is secured by first priority mortgages on the four aforementioned vessels    
Line of credit facility, maturity date December 2028    
CEXIM $57,564 Facility [Member] | Star Wave [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 13,209    
Line of Credit Facility, Periodic Payment 330    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 2,642    
CEXIM $57,564 Facility [Member] | Star Gina [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity 26,175    
Line of Credit Facility, Periodic Payment 654    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 5,235    
CEXIM $57,564 Facility [Member] | Star Wave and Star Gina [Member]      
Debt Instrument [Line Items]      
Repayment installment 32    
Line of Credit Facility, Frequency of Payments quarterly    
Line of credit facility, maturity date December 2028    
CEXIM $57,564 Facility [Member] | Star Suzanna [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 9,090    
CEXIM $57,564 Facility [Member] | Star Charis [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 9,090    
CEXIM $57,564 Facility [Member] | Star Charis and Star Suzanna [Member]      
Debt Instrument [Line Items]      
Repayment installment 32    
Line of Credit Facility, Frequency of Payments quarterly    
E SUN Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Jan. 31, 2019    
Description of scope, credit facility to refinance the outstanding amount under the then existing lease agreement of the vessel Star Ariadne    
Line of Credit Facility, Maximum Borrowing Capacity $ 37,100    
Draw down date March 1, 2019    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 618    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 24,733    
Line of Credit Facility, Collateral is secured by a first priority mortgage on the vessel Star Ariadne.    
Line of credit facility, maturity date March 2024    
Proceeds from Lines of Credit $ 37,100    
Atradius Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Feb. 28, 2019    
Description of scope, credit facility to finance the acquisition and installation of scrubber equipment for 42 vessels    
Line of Credit Facility, Maximum Borrowing Capacity $ 36,645    
Line of Credit Facility, Frequency of Payments semi-annual    
Line of Credit Facility, Periodic Payment $ 3,331    
Line of Credit Facility, Collateral is secured by a second-priority mortgage on 18 vessels of the Company’s fleet    
Line of credit facility, maturity date June 2024    
Atradius Facility [Member] | Star Despoina and Star Piera [Member]      
Debt Instrument [Line Items]      
Prepayment date September 2021    
Debt instrument, prepayment amount $ 1,999    
Atradius Facility [Member] | First Three Tranches [Member]      
Debt Instrument [Line Items]      
Draw down date During 2019    
Proceeds from Lines of Credit $ 33,311    
Atradius Facility [Member] | Last Tranche [Member]      
Debt Instrument [Line Items]      
Draw down date January 2020    
Proceeds from Lines of Credit $ 3,331    
CTBC Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date May 24, 2019    
Description of scope, credit facility to refinance the outstanding amount under the then existing lease agreement of the vessel Star Karlie.    
Line of Credit Facility, Maximum Borrowing Capacity $ 35,000    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 730    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 20,400    
Line of Credit Facility, Collateral is secured by first priority mortgage on the aforementioned vessel.    
Line of credit facility, maturity date May 2024    
NTT Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Jul. 31, 2019    
Description of scope, credit facility to refinance the outstanding amount of the vessel Star Aquarius under the then existing loan agreement.    
Draw down date August 2019    
Repayment installment 27    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 313    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 9,063    
Line of Credit Facility, Collateral is secured by first priority mortgage on the vessel Star Aquarius    
Line of credit facility, maturity date August 2026    
Proceeds from Lines of Credit $ 17,500    
CEXIM $106,470 Facility [Member] | Tranche A, B and C [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Sep. 23, 2019    
Description of scope, credit facility to refinance the outstanding amounts under the then existing lease agreements of the vessels Katie K, Debbie H and Star Ayesha    
Line of Credit Facility, Maximum Borrowing Capacity $ 106,470    
Number of Loan Tranches 3    
Draw down date November 2019    
Repayment installment 40    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 739    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 5,915    
Line of Credit Facility, Collateral is secured by first priority mortgages on the three aforementioned vessels.    
Proceeds from Lines of Credit $ 35,490    
ABN $115,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Dec. 17, 2018    
Line of Credit Facility, Maximum Borrowing Capacity $ 115,000    
Number of Loan Tranches 4    
Line of Credit Facility, Collateral is secured by a first priority mortgage on the vessels Star Virginia, Star Scarlett, Star Jeannette, Star Audrey, Star Bright, Star Marianne and Star Janni.    
ABN $115,000 Facility [Member] | Tranche A [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to refinance the then existing indebtedness of the vessels Star Virginia, Star Scarlett, Star Jeannette and Star Audrey    
Line of Credit Facility, Periodic Payment $ 1,705    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 35,428    
Proceeds from Lines of Credit $ 69,525    
ABN $115,000 Facility [Member] | Tranche B [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to partially finance the acquisition cost of Star Bright.    
Line of Credit Facility, Periodic Payment $ 282    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid 2,260    
Proceeds from Lines of Credit $ 7,900    
ABN $115,000 Facility [Member] | Tranche A and B [Member]      
Debt Instrument [Line Items]      
Draw down date December 20, 2018    
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of credit facility, maturity date December 2023    
ABN $115,000 Facility [Member] | Remaining two tranches [Member] | Tranche C and D [Member]      
Debt Instrument [Line Items]      
Description of scope, credit facility to partially finance the acquisition cost of Star Marianne and Star Janni    
Draw down date January 2019    
Repayment installment 19    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 672    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 5,114    
Line of credit facility, maturity date December 2023    
Proceeds from Lines of Credit $ 17,875    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche A [Member]      
Debt Instrument [Line Items]      
Repayment installment 20    
Line of Credit Facility, Frequency of Payments quarterly    
Line of credit facility, maturity date June 2027    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche A, First 13 Installments [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment $ 1,705    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche A, Fourteenth Installment [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment 2,218    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche A, Next Five Installments [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment 3,330    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche A, Last Installment [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment $ 4,626    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche B [Member]      
Debt Instrument [Line Items]      
Repayment installment 13    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 282    
Line of credit facility, maturity date December 2025    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche B, Last Installment [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment $ 286    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche C and D [Member]      
Debt Instrument [Line Items]      
Repayment installment 13    
Line of Credit Facility, Frequency of Payments quarterly    
Line of Credit Facility, Periodic Payment $ 672    
Line of credit facility, maturity date December 2025    
ABN $115,000 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member] | Tranche C and D last installment [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Periodic Payment $ 413    
ABN 67,897 Facility [Member] | Amended and Restated Agreement ABN $115,000 Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Initiation Date Aug. 04, 2022    
Line of credit facility, maturity date June 2027    
Debt Instrument, Interest Rate Terms lower margin above SOFR