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Note 3 - Advances for Vessels Under Construction and Vessel Acquisition Deposits (Details Textual) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Advances for Vessel Acquisition	$ 2,318,583	$ 17,753,737
Kamsarmax Vessel Hull Number YZJ 1153 [Member]
Advances for Vessel Acquisition	$ 2,250,000

X

- Definition

Represents advances for vessel acquisition.

+ References

No definition available.

+ Details

Name:	esea_AdvancesForVesselAcquisition
Namespace Prefix:	esea_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=esea_KamsarmaxVesselHullNumberYzj1153Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: