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Note 2 - Significant Accounting Policies (Detail) | 12 Months Ended
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Dec. 31, 2012
Employee Contract Term Max | 9 months
Number of Reportable Segments | 1
Minimum [Member] |
Property, Plant and Equipment, Useful Life | 25 years
Maximum [Member] |
Property, Plant and Equipment, Useful Life | 30 years

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | esea_EmployeeContractTermMax
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 No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration