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Note 18 - Revenues (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Demurrage Revenue	$ 687

X

- Definition

Amount of demurrage revenue recognized.

+ References

No definition available.

+ Details

Name:	tops_DemurrageRevenue
Namespace Prefix:	tops_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration