Percentage fee that accompanies borrowing money under the debt instrument.

No definition available.

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Namespace Prefix:	tops_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of periodic payment installments in which the debt is to be repaid.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of the interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	tops_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of vessels sold as part of sale and leaseback transaction.

+ References

No definition available.

+ Details

Name:	tops_NumberOfVesselsSold
Namespace Prefix:	tops_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Consideration to be paid if the option to buy back the vessel is exercised by the Company.

+ References

No definition available.

+ Details

Name:	tops_PurchasePriceOfVesselIfOptionIsExercised
Namespace Prefix:	tops_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The annual bareboat hire rate under the sale leaseback transaction.

+ References

No definition available.

+ Details

Name:	tops_SaleLeasebackTransactionBareboatHireRatePerAnnum
Namespace Prefix:	tops_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentsAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow for the sale of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentAdditions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Lease term for sale and leaseback transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479741/842-40-50-2

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=tops_MTLegioXEquestrisMember
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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=tops_CmbflFacilityMember
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Data Type:	na
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Period Type:

- Details

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- Details

Name:	us-gaap_VariableRateAxis=tops_TermSecuredOvernightFinancingRateSOFRRateMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=tops_HsbcBridgeFacilityMember
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Debt, 1st CMBFL SLBs (Details) $ in Thousands						1 Months Ended		6 Months Ended
Debt, 1st CMBFL SLBs (Details) $ in Thousands	Jan. 25, 2024 USD ($)	Jan. 25, 2024 USD ($)	Jan. 23, 2024 USD ($)	Jan. 18, 2024 USD ($)	Jan. 16, 2024 USD ($)	Sep. 30, 2023	Jul. 31, 2023	Jun. 30, 2024 USD ($) Vessel Installment	Jun. 30, 2023 USD ($)
Debt [Abstract]
Proceeds from short-term debt								$ 28,000	$ 0
Repayments of short-term debt								$ 28,000	$ 0
M/T Julius Caesar [Member]
Debt [Abstract]
Purchase price of vessel					$ 48,604
M/T Legio X Equestris [Member]
Debt [Abstract]
Purchase price of vessel			$ 49,272
1st CMBFL Facility [Member]
Debt [Abstract]
Term of time charter								8 years
Number of payment installments \| Installment								32
Frequency of periodic payment								quarterly
Installment payment								$ 675
Balloon payment payable at maturity								$ 32,403
Bareboat hire rate per annum				$ 7,300
Proceeds from sale of vessel	$ 125,000
Number of vessels sold \| Vessel								2
1st CMBFL Facility [Member] \| M/T Julius Caesar [Member]
Debt [Abstract]
Consideration to be paid if option to buy back vessel is exercised				37,500
Proceeds from sale of vessel				62,500
1st CMBFL Facility [Member] \| M/T Legio X Equestris [Member]
Debt [Abstract]
Consideration to be paid if option to buy back vessel is exercised	$ 37,500	$ 37,500
Proceeds from sale of vessel		62,500
1st CMBFL Facility [Member] \| LIBOR [Member]
Debt [Abstract]
Term of variable rate								3 months
1st CMBFL Facility [Member] \| Term SOFR [Member] \| M/T Julius Caesar [Member]
Debt [Abstract]
Basis spread on variable rate							2.60%
1st CMBFL Facility [Member] \| Term SOFR [Member] \| M/T Legio X Equestris [Member]
Debt [Abstract]
Basis spread on variable rate						2.60%
HSBC Bridge [Member]
Debt [Abstract]
Proceeds from short-term debt			$ 8,000		20,000
Repayments of short-term debt		$ 8,000		$ 20,000
Maximum borrowing capacity					$ 24,000
Borrowing percentage fee					1.00%
HSBC Bridge [Member] \| Term SOFR [Member]
Debt [Abstract]
Basis spread on variable rate					3.00%