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v3.26.1

Transactions with Related Parties, Liability from Contract with Related Party (Details) - USD ($) $ in Thousands |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 31, 2025 | Dec. 04, 2025 | Mar. 31, 2026 | Dec. 31, 2025 | Apr. 11, 2025
Transactions with Related Parties [Abstract] |  |  |  |  |
Percentage ownership |  |  |  |  | 100.00%
Related Party [Member] | Newbuilding Yacht [Member] |  |  |  |  |
Transactions with Related Parties [Abstract] |  |  |  |  |
Percentage ownership |  | 100.00% |  |  |
Related Party [Member] | Rubico Inc [Member] |  |  |  |  |
Transactions with Related Parties [Abstract] |  |  |  |  |
2025 LOI Advance |  | $ 4,000 |  |  |
Newbuilding Yacht Consideration | $ 38,000 |  |  | $ 38,000 |
Newbuilding Yacht Consideration settled | 19,500 |  |  | 19,500 |
Newbuilding Yacht Consideration paid | 15,500 |  |  |  |
Remaining Newbuilding Yacht Consideration to be settled | $ 18,500 |  |  | $ 18,500 |
Settlement period |  |  |  | 300 days |
Related Party [Member] | Rubico Inc [Member] | Subsequent Event [Member] |  |  |  |  |
Transactions with Related Parties [Abstract] |  |  |  |  |
Newbuilding Yacht Consideration settled |  |  | $ 28,500 |  |
Newbuilding Yacht Consideration paid |  |  | $ 9,000 |  |

X
- Definition Consideration paid by a related party for signing a letter of intent relating to the prospective sale of Roman Explorer Inc. (a wholly owned subsidiary that owns 100% of the Newbuilding Yacht). + References No definition available. + Details
Name: | tops_LetterOfIntentAdvance
Namespace Prefix: | tops_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Consideration to be received for the sale of Roman Explorer Inc to Rubico Inc. in accordance with a share purchase agreement. + References No definition available. + Details
Name: | tops_NewbuildingYachtConsideration
Namespace Prefix: | tops_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of remaining consideration to be settled for the sale of Roman Explorer Inc to a related party in accordance with a share purchase agreement. + References No definition available. + Details
Name: | tops_NewbuildingYachtConsiderationOutstanding
Namespace Prefix: | tops_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash inflow from a related party for the sale of Roman Explorer Inc in accordance with a share purchase agreement. + References No definition available. + Details
Name: | tops_NewbuildingYachtConsiderationPaid
Namespace Prefix: | tops_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of consideration settled for the sale of Roman Explorer Inc to a related party in accordance with a share purchase agreement. + References No definition available. + Details
Name: | tops_NewbuildingYachtConsiderationSettled
Namespace Prefix: | tops_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Period following the Company's entry into a Share Purchase Agreement to settle remaining balance of Newbuilding Yacht Consideration for the sale of Roman Explorer Inc to a related party, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | tops_NewbuildingYachtConsiderationSettlementPeriod
Namespace Prefix: | tops_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage ownership of a motor yacht. + References No definition available. + Details
Name: | tops_PercentageOwnershipOfYacht
Namespace Prefix: | tops_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | tops_RelatedPartyExpensesAbstract
Namespace Prefix: | tops_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=tops_MYSanlorenzoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=tops_RubicoIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |