Income Taxes (Details) $ in Thousands	12 Months Ended
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

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.

No definition available.

Name:	tops_EffectiveFederalTaxRateUSSourceShippingIncomePercent
Namespace Prefix:	tops_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration