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Note 7 - Commitments and Contingencies (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Future Minimum Long Term Charter Revenue	$ 0
Number of Vessels Under Construction	4
Purchase Obligation	$ 95,610
Purchase Obligation, Future Minimum Payments, Remainder of Fiscal Year	11,260
Purchase Obligation, Due in Second Year	$ 84,350

X

- Definition

Represents future minimum long-term time charter revenue.

+ References

No definition available.

+ Details

Name:	esea_FuturMinimumLongTermCharterRevenue
Namespace Prefix:	esea_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the number of vessels under construction.

+ References

No definition available.

+ Details

Name:	esea_NumberOfVesselsUnderConstruction
Namespace Prefix:	esea_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

+ Details

Name:	us-gaap_PurchaseObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Minimum amount of purchase arrangement maturing in the second fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

+ References

No definition available.

+ Details

Name:	us-gaap_PurchaseObligationDueInSecondYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Minimum amount of purchase arrangement maturing in the remainder of the fiscal year following the latest fiscal year ended. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

+ References

No definition available.

+ Details

Name:	us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant