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Note 3 - Advances for Vessels Under Construction (Details Textual)	Jun. 30, 2022 USD ($)	May 20, 2022 USD ($)	Mar. 18, 2022 USD ($)	Jan. 28, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 29, 2021 USD ($)
Advances for Vessel Under Construction	$ 37,796,368				$ 7,615,958
Eco Design Fuel Efficient Containerships [Member]
Number of Vessels Under Construction	9	2	3	2		2
Construction of Vessels, Amount to Be Financed with a Combination of Debt and Equity	$ 352,900,000	$ 86,700,000	$ 103,800,000	$ 86,300,000		$ 76,100,000

X

- Definition

Represents advances for vessel construction.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the cost at which vessels will be constructed, financed with a combination of debt and equity.

+ References

No definition available.

+ Details

Name:	esea_ConstructionOfVesselsAmountToBeFinancedWithACombinationOfDebtAndEquity
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

- Details

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