Transactions with Related Parties, Central Shipping Inc (Details) - Related Party [Member] - CSI [Member] - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023
Transactions with Related Parties [Abstract]
Fees and expenses	$ 2,030	$ 1,613
Current and Non-Current Portions of Long-term Debt [Member]
Transactions with Related Parties [Abstract]
Financing fees	306	0
Management Fees - Related Parties [Member]
Transactions with Related Parties [Abstract]
Management fees	948	912
Accounting and reporting cost	180	180
Vessel Operating Expenses [Member]
Transactions with Related Parties [Abstract]
Superintendent fees	14	7
Dry-Docking Costs [Member]
Transactions with Related Parties [Abstract]
Superintendent fees	74	0
Voyage Expenses [Member]
Transactions with Related Parties [Abstract]
Commission on charter hire agreements	$ 508	$ 514

Amount of accounting and reporting costs with related party recognized.

No definition available.

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

- Definition

Amount of commission with related party on charter hire agreements recognized.

+ References

No definition available.

+ Details

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

- Definition

Amount of financing fees with related party capitalized.

+ References

No definition available.

+ Details

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

- Definition

Amount of management fees with related party recognized for all operational, technical and commercial functions relating to the chartering and operation of Company vessels.

+ References

No definition available.

+ Details

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

- References

No definition available.

+ Details

Name:	tops_RelatedPartyExpensesAbstract
Namespace Prefix:	tops_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of superintendent fees with related party recognized.

+ References

No definition available.

+ Details

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

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-3

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=tops_CentralShippingIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=tops_CurrentPortionAndNonCurrentPortionOfLongTermDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=tops_RelatedPartyManagementFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=tops_VesselOperatingExpensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=tops_DryDockingCostsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=tops_VoyageExpensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: