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Income Taxes (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 USD ($)
Income Taxes [Abstract] |
Tax rate on U.S. source shipping income | 2.00%
Vessel Operating Expense [Member] |
Income Taxes [Abstract] |
Tax expense on U.S. source shipping income | $ 152

X
- Definition Effective federal tax rate on U.S. source shipping income attributable to the transport of cargoes to or from the United States which is not considered an income tax. + References No definition available. + Details
Name: | tops_EffectiveFederalTaxRateUSSourceShippingIncomePercent
Namespace Prefix: | tops_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of federal tax expense on U.S. source shipping income attributable to the transport of cargoes to or from the United States which is not considered an income tax. + References No definition available. + Details
Name: | tops_FederalTaxExpenseUSSourceShippingIncome
Namespace Prefix: | tops_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_OperatingExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |