Consolidated Statements of Comprehensive Income/(Loss) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest and finance costs to related party	$ 509	$ 20	$ 0

Interest and debt related expenses associated with nonoperating financing activities of the entity with related party.

No definition available.

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