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Note 2 - Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Estimated Salvage Value Per Light Weight Ton of Vessel	0.25	0.25
Ship Owning Crew Contract Term (Day)	9 days
Number of Reportable Segments	1
Vessels [Member]
Property, Plant and Equipment, Useful Life (Year)	25 years

X

- Definition

The estimated salvage value per light weighted ton of vessel.

+ References

No definition available.

+ Details

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Namespace Prefix:	esea_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the contract term crews contracted with ship-owning companies.

+ References

No definition available.

+ Details

Name:	esea_ShipOwningCrewContractTerm
Namespace Prefix:	esea_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: