Represents the average varibale interest rate of a debt intrument.

No definition available.

Name:	esea_DebtInstrumentVariableInterestRate
Namespace Prefix:	esea_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents imputed interest.

+ References

No definition available.

+ Details

Name:	esea_ImputedInterest
Namespace Prefix:	esea_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Limited Dividends Percentage Loans to Profits

+ References

No definition available.

+ Details

Name:	esea_LimitedDividendsPercentageLoansToProfits
Namespace Prefix:	esea_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Namespace Prefix:	esea_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the term loan facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the term loan facility as a percentage of vessel market value upon delivery without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

Name:	esea_TermLoanFacilityMaximumBorrowingCapacityAsAPercentageOfVesselMarketValueUponDelivery
Namespace Prefix:	esea_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the term loan facility as a percentage of vessel market value upon delivery if the ship is charter free without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

Name:	esea_TermLoanFacilityMaximumBorrowingCapacityAsAPercentageOfVesselMarketValueUponDeliveryCharterFree
Namespace Prefix:	esea_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the term loan facility as a percentage of vessel market value upon delivery if the ship is under an Approved Charter without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

Name:	esea_TermLoanFacilityMaximumBorrowingCapacityAsAPercentageOfVesselMarketValueUponDeliveryUnderCharter
Namespace Prefix:	esea_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.8)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_InterestExpenseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=esea_FinanceConstructionOfHullNoDY160Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=esea_FinanceConstructionOfHullNoDY161Member
Namespace Prefix:
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Period Type:

Note 6 - Long-term Debt (Details) - USD ($)	1 Months Ended		6 Months Ended
Note 6 - Long-term Debt (Details) - USD ($)	Mar. 31, 2015	Jan. 31, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Note 6 - Long-term Debt (Details) [Line Items]
Limited Dividends Percentage Loans to Profits			60.00%
Restricted Cash and Cash Equivalents			$ 5,491,962		$ 7,994,093
Interest Expense, Debt			849,384	$ 957,923
Imputed Interest			$ 243,398	$ 0
Debt Instrument, Interest Rate During Period			4.71%
London Interbank Offered Rate (LIBOR) [Member]
Note 6 - Long-term Debt (Details) [Line Items]
Debt Instrument, Average Variable Interest Rate			0.25%
Debt Instrument, Basis Spread on Variable Rate			4.47%
Finance Construction of Hull No DY 160 [Member]
Note 6 - Long-term Debt (Details) [Line Items]
Term Loan Facility, Maximum Borrowing Capacity		$ 19,950,000
Term Loan Facility, Maximum Borrowing Capacity, As a Percentage of Vessel Market Value Upon Delivery, Approved Charter		70.00%
Term Loan Facility, Maximum Borrowing Capacity, As a Percentage of Vessel Market Value Upon Delivery, Charter Free		65.00%
Debt Instrument, Term		5 years
Finance Construction of Hull No DY 161 [Member]
Note 6 - Long-term Debt (Details) [Line Items]
Term Loan Facility, Maximum Borrowing Capacity	$ 19,000,000
Debt Instrument, Term	4 years
Term Loan Facility, Maximum Borrowing Capacity, As a Percentage of Vessel Market Value Upon Delivery	62.50%