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

Consideration to be received for the sale of Roman Explorer Inc to Rubico Inc. in accordance with a share purchase agreement.

No definition available.

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

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.

No definition available.

Name:	tops_NewbuildingYachtConsiderationOutstanding
Namespace Prefix:	tops_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of cash inflow from a related party for the sale of Roman Explorer Inc in accordance with a share purchase agreement.

No definition available.

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

Amount of consideration settled for the sale of Roman Explorer Inc to a related party in accordance with a share purchase agreement.

No definition available.

Name:	tops_NewbuildingYachtConsiderationSettled
Namespace Prefix:	tops_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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.

No definition available.

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

Percentage ownership of a motor yacht.

No definition available.

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

- References

No definition available.

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

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

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

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