Document And Entity Information
us-gaap_InterestExpense
Interest Expense
Note To Financial Statement Details Textual
Property, Plant and Equipment Disclosure [Text Block]
statementsignificantaccountingpoliciespolicies
Amortization and write off of deferred charges
statementnote1basisofpresentationandgeneralinformationtables
Property, Plant and Equipment [Table Text Block]
statementnote3inventoriestables
statementnote4advancesforvesselsunderconstructionandvesselacquisitiondepositstables
statementnote5vesselnettables
statementnote6deferredchargesnettables
statementnote7accruedexpensestables
Consolidation, Policy [Policy Text Block]
statementnote9longtermdebttables
statementnote12stockincentiveplantables
statementnote13earningslosspersharetables
statementnote14voyagevesseloperatingexpensesandcommissionstables
statementnote15derivativefinancialinstrumentstables
Deferred revenue
Inventory Disclosure [Text Block]
statementnote16investmentinjointventureandotherinvestmenttables
Schedule of Inventory, Current [Table Text Block]
statementnote17preferredsharestables
statementnote18financialinstrumentstables
HSH Nordbank [Member]
Represents HSH Nordbank, a lender of the company.
statementnote1basisofpresentationandgeneralinformationcharterersindividuallyaccountedformorethan10ofthecompanysvoyageandtimecharterrevenuesdetails
Accrued expenses
statementnote3inventoriessummaryofinventoriesdetails
statementnote4advancesforvesselsunderconstructionandvesselacquisitiondepositsadvancesforvesselsunderconstructiondetails
statementnote5vesselsnetsummaryofvesselsdetails
statementnote6deferredchargesnetsummaryofdeferredchargesdetails
statementnote7accruedexpensessummaryofaccruedexpensesdetails
statementnote9longtermdebtsummaryoflongtermdebtdetails
ATM Common Stock Offering [Member]
An at-the-market (ATM) offering is a type of follow-on offering of stock utilized by publicly traded companies in order to raise capital over time.
statementnote9longtermdebtsummaryoffutureannualloanrepaymentsforlongtermdebtdetails
statementnote12stockincentiveplansummaryofthestatusofthecompanysnonvestedsharesdetails
statementnote13earningslosspersharesummaryofbasicanddilutedlosspercommonsharedetails
Related party management fees
statementnote14voyagevesseloperatingexpensesandcommissionssummaryofvoyagevesseloperatingexpensesandcommissionsdetails
statementnote15derivativefinancialinstrumentsderivativenotdesignatedashedginginstrumentsbyaccounttypedetails
statementnote15derivativefinancialinstrumentsgainorlossonderivativesnotdesignatedashedginginstrumentsdetails
statementnote16investmentinjointventureandotherinvestmentsummarizedfinancialinformationforthejointventuredetails
statementnote16investmentinjointventureandotherinvestmentinvestmentinjointventuredetails
statementnote17preferredsharesdividendsseriesbpreferredsharesdetails
esea_VesselConstructionContractPrice
Vessel Construction, Contract Price
The contract price for the construction of vessel.
statementnote18financialinstrumentsfairvalueofcompanysliabilitiesdetails
us-gaap_PolicyTextBlockAbstract
Accounting Policies
statementnote18financialinstrumentsfairvalueofcompanysinvestmentsdetails
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
Notes To Financial Statements
esea_VesselConstructionPeriodicPayment
Vessel Construction, Periodic Payment
Amount of the required periodic payments pursuant to a vessel construction agreement.
Notes To Financial Statements [Abstract]
DWT Bulk Carrier [Member]
Represents information pertaining to DWT bulk carrier.
esea_VesselConstructionNumberOfPayments
Vessel Construction, Number of Payments
The number of payments pursuant to a vessel construction agreement.
Agreement with Friends Investment Co. [Member]
Represents a stock offering agreement with Friends Investment Co.
esea_VesselConstructionNumberOfPaymentsMade
Vessel Construction, Number of Payments Made
The number of payments made by the company during the period.
us-gaap_EquityMethodInvestments
Equity Method Investments
Percentage of revenue by charter
TCP [Member]
Represents Technomar.
Trade accounts payable
us-gaap_IncreaseDecreaseInDueToAffiliates
Due to related company
Other investment, fair value
esea_OtherInvestmentFairValueDisclosure
Fair value portion of other investment.
First Five Years [Member]
Represents information applicable to the first five years during which the stock is outstanding.
Operating expenses
Sales Revenue, Net [Member]
esea_PreferredStockAdditionalCashDividendUnderOtherSpecifiedConditionsPercentage
Preferred Stock Additional Cash Dividend Under Other Specified Conditions Percentage
The additional cash dividend, expressed as a percentage of the common stock dividend which would have been paid to Series B preferred shareholders on an as-converted basis, if a cash dividend is paid on the Company's common stock and if the dividend paid on the Series B Preferred Shares is 0%. However, this holds true only if the amount would exceed the normal 5% preferred dividend.
esea_PreferredStockDividendRateUnderOtherSpecifiedConditionsPercentage
Preferred Stock Dividend Rate Under Other Specified Conditions Percentage
The preferred stock dividend rate that will be used to determine the cash dividend that will be paid to Series B preferred shareholders under the following conditions: a cash dividend is paid on the Company's common stock and the dividend paid on the Series B Preferred Shares is 0%, and such amount exceeds 100% of the common stock dividend that would have been paid to the Series B preferred shareholders on an as-converted basis.
Preferred shares, shares outstanding (in shares)
Balance, January 1, 2014 (in shares)
Balance, December 31, 2014 (in shares)
esea_PreferredStockAdditionalCashDividendUnderSpecifiedConditionsPercentage
Preferred Stock Additional Cash Dividend Under Specified Conditions Percentage
The additional cash dividend, expressed as a percentage of the common stock dividend which would have been paid to Series B preferred shareholders on an as-converted basis, if a cash dividend is paid on the Company's common stock and if the dividend paid on the Series B Preferred Shares is 5% (in which case the 5% Series B preferred dividend will also be paid in cash).
us-gaap_SharesOutstanding
Balance (in shares)
Balance (in shares)
After Year Seven [Member]
Represents information applicable when the stock has been outstanding for more than seven years.
Common stock, shares outstanding (in shares)
After First Five Years [Member]
Represents after first five years.
Years Six and Seven [Member]
Represents information applicable to the sixth and seventh years during which the stock is outstanding.
Ordinary Preferred Stock [Member]
Information related to ordinary preferred stock.
Concentration Risk Benchmark [Domain]
Preferred Stock Issued as Dividends [Member]
Information related to preferred stock issued as dividends.
esea_PreferredStockConvertibleInitialConversionPrice
Preferred Stock Convertible Initial Conversion Price
The initial conversion price at which each preferred share is convertible into common stock (subject to adjustment, including upon a default).
Concentration Risk Benchmark [Axis]
us-gaap_IncreaseInCarryingAmountOfRedeemablePreferredStock
Increase in Carrying Amount of Redeemable Preferred Stock
Cash and cash equivalents
Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year
us-gaap_Cash
Cash
Payment-in-kind dividends
Dividends, Paid-in-kind
Dividends declared
us-gaap_DividendsPreferredStockPaidinkind
Eton Park and Rhone [Member]
Represents Eton Park and Rhone.
us-gaap_AllocatedShareBasedCompensationExpense
Allocated Share-based Compensation Expense
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
us-gaap_IncreaseDecreaseInPrepaidExpense
Prepaid expenses
Customer Concentration Risk [Member]
Issuance of restricted shares for stock incentive award and share-based compensation
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Insurance Premiums Revenue Recognition, Policy [Policy Text Block]
Interest income
Canceled shares due to repurchase program (in shares)
us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
Canceled shares due to repurchase program
esea_InvestmentInJointVentureTotalMaximumInvestmentByMembers
Investment in Joint Venture Total Maximum Investment by Members
Investment in Joint Venture, Total Maximum Investment by Members
us-gaap_SalesRevenueNet
Net revenue
us-gaap_StockIssuedDuringPeriodValuePurchaseOfAssets
Stock Issued During Period, Value, Purchase of Assets
Issuance of shares for vessel acquisition, net of issuance costs (in shares)
Stock Issued During Period, Shares, Purchase of Assets
Related party revenue
Revenue from Related Parties
esea_VesselAcquisitionEscrowDepositContributedToJointVenture
Vessel Acquisition, Escrow Deposit Contributed to Joint Venture
The amount of escrow deposit contributed to the joint venture in relation to the acquisition of a vessel.
Dividends declared (in shares)
us-gaap_PreferredStockDividendsShares
us-gaap_IncreaseDecreaseInAccountsReceivable
Trade accounts receivable
us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables
Other receivables
(Increase) / decrease in:
Investment in joint venture, fair value
us-gaap_EquityMethodInvestmentsFairValueDisclosure
Depreciation, Depletion, and Amortization [Policy Text Block]
esea_EquityLossAndImpairmentOfInvestmentInJointVenture
Equity loss and impairment of investment in joint venture
The equity loss and impairment of investment from joint venture.
Issuance of restricted shares for stock incentive award and share-based compensation (in shares)
Friends Investment Company Inc. [Member]
Related to the Friends Investment Company.
Fair Value Measurement, Policy [Policy Text Block]
Segment Reporting, Policy [Policy Text Block]
Advances for vessels under construction
Advances for vessels under construction
Represents advances made by the company for vessels that are currently under construction.
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Schedule of Advances for Property, Plant, and Equipment [Table Text Block]
Disclosure of information regarding advances for physical assets used in the normal conduct of business.
esea_VesselsDeliveredDuringThePeriod
Vessel delivered during the period
Costs, Delivery of newbuilding vessel
The monetary amount related to vessels that have been delivered during the period.
esea_CancellationOfNewbuildContracts
Loss on termination and impairment of newbuilding contracts
The monetary value of newbuild contracts that have been cancelled and will no longer be completed.
esea_PropertyPlantEquipmentDisposalsNetOfAccumulatedDepreciation
Net Book Value, Sale of a vessel
Net Book Value, Sale of a vessel
Represents the disposal of property plant and equipment net of accumulated depreciation.
esea_DebtInstrumentNumberOfQuarterlyPayments
Debt Instrument Number of Quarterly Payments
Represents debt instrument number of quarterly payments.
Operating loss
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems
Net loss
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
Comprehensive Income, Policy [Policy Text Block]
Eurobank [Member]
Related to Eurobank.
Earnings Per Share, Policy [Policy Text Block]
us-gaap_IncreaseDecreaseInInventories
Inventories
Nord LB [Member]
Related to Nord LB.
esea_DebtInstrumentNumberOfSemiAnnualPayments
Debt Instrument Number of Semi Annual Payments
Represents the number of semi-annual payments of a long-term debt.
Net revenue
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue
Private Placement [Member]
Sale of Stock [Axis]
Allendale Investments S.A. [Member]
Related to Allendale Investments S.A.
Sale of Stock [Domain]
Members’ contributions
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationEquity
Kamsarmax One Shipping Ltd. [Member]
Related to Kamsarmax One Shipping Ltd.
Issuance of preferred shares from private placement net of issuance costs (in shares)
Issuance of shares from private placement, net of issuance costs (in shares)
Stock Issued During Period, Shares, New Issues
esea_LongtermDebtCurrentGross
Less: Current portion
Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt classified as current. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.
Current liabilities
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities
Issuance of preferred shares from private placement net of issuance costs
Issuance of shares, net of issuance costs
Non current liabilities
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities
esea_LongtermDebtNoncurrentGross
Long-term portion
Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt classified as noncurrent. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.
us-gaap_LiabilitiesAndStockholdersEquity
Total liabilities, mezzanine equity and shareholders’ equity
Non current assets
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets
M/V Aegean Express [Member]
Related to the vessel Aegean Express.
esea_AdvancesForVesselAcquisitionAccumulatedPayments
Balance, Cost
Balance, Cost
The accumulated monetary amount of advances made for vessel acquisitions.
Alterwall Business Inc. [Member]
Related to Alterwall Business Inc.
Current assets
us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets
esea_FairValueInputsCostOfCapital
Fair Value Inputs, Cost of Capital
The cost of capital used in calculating various fair values.
Accumulated deficit
Vessels [Member]
Related to vessels.
us-gaap_EquityMethodInvestmentAggregateCost
Equity Method Investment, Aggregate Cost
Loss on termination and impairment of newbuilding contracts
The amount of loss pertaining to the termination of a new building contract.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued
Limited Liability Company (LLC) Preferred Unit, Issued
Investment in joint venture, impairment loss
us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Equity Method Investment, Other than Temporary Impairment
Impairment in joint venture
Pension and Other Postretirement Plans, Policy [Policy Text Block]
Equity Method Investments [Table Text Block]
Equity Method Investments and Joint Ventures Disclosure [Text Block]
esea_InvestmentsInAndAdvanceToAffiliatesSubsidiariesAssociatesAndJointVenturesInvestmentPerCounterparty
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Investment Per Counterparty
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures per each counterparty.
esea_EquityMethodInvestmentOwnershipPercentagePerCounterpartyPercentage
Equity Method Investment, Ownership Percentage Per Counterparty, Percentage
Percentage of ownership in joint venture or other investment by each counterparty.
Net gain on sale of vessels, related party
Represents net loss on sale of vessels with related party.
December 31, 2015 [Member]
Represents the report date of December 31, 2015.
us-gaap_RestrictedCashAndInvestments
Restricted Cash and Investments
Sale at the Market [Member]
Sale of securities sold at the market.
Restricted Cash and Cash Equivalents 1 [Axis]
Information by category of cash or cash equivalent items which are restricted as to withdrawal or usage.
Restricted Cash And Cash Equivalents1 [Domain]
Alexandros P [Member]
Alexandros P, the name of a vessel.
Advance Deposit and Capitalized Expenses [Member]
Represents advance deposit and capitalized expenses related to vessel constructions.
esea_ProceedsOnSaleOfVesselsNetOfPaymentsForVesselAcquisition
Proceeds on Sale of Vessels, Net of Payments for Vessel Acquisition
Amount of cash proceeds received on the sale of vessels, net of cash paid to acquire vessels during the period.
us-gaap_AssetsNoncurrent
Total long-term assets
M/V Dagr Including Fuel on Board [Member]
Related to a vessel with fuel on board.
M/V RT Dagr, Fuel on Board [Member]
Represents the fuel on board the M/V RT Dagr.
Loan commitment fees
Deferred Loan Commitment Fees Incurred During Period
Amount of deferred loan commitment fees incurred during the period.
Xingang Shipping Ltd. / Joanna Maritime Ltd. [Member]
Related to certain entities.
esea_AssetCoverageRatioRequiredByDebtAgreement
Asset Coverage Ratio Required by Debt Agreement
The ratio of assets required to cover debt.
Entities Managed by Tennenbaum Capital Partners [Member]
Related to entities managed.
Colby Trading Ltd [Member]
Related to Colby Trading.
Foreign exchange gain / (loss)
Vessels held for sale, fair value
us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure
Assets Held-for-sale, Long Lived, Fair Value Disclosure
us-gaap_RestrictedCashAndCashEquivalentsNoncurrent
Restricted cash
us-gaap_ImpairmentEffectOnEarningsPerSharePretax
Impairment Effect on Earnings Per Share, Pretax
Deferred charges, net
Balance, beginning of year
Balance, end of year
Equity Method Investments [Member]
Other investment
Investments and Other Noncurrent Assets
Balance,
Balance
Asset Class [Domain]
Asset Class [Axis]
us-gaap_ShareBasedCompensation
Share-based compensation
us-gaap_DerivativeAverageFixedInterestRate
Derivative, Average Fixed Interest Rate
Revenue Recognition, Policy [Policy Text Block]
Common stock (par value $0.03, 200,000,000 shares authorized, 8,195,760 and 10,876,112 issued and outstanding)
us-gaap_TableTextBlock
Notes Tables
Stockholders' Equity Note, Redeemable Preferred Stock, Issue, Policy [Policy Text Block]
Alterwall Business Inc. Vs. Fuel Oil Supplier [Member]
Information pertaining to the litigation case between Artwell Business Inc. and a fuel oil supplier.
Common stock, shares issued (in shares)
Common stock, shares authorized (in shares)
Amendment Flag
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
Common stock, par value (in dollars per share)
Vessel depreciation
- Depreciation for the year
Revenues
us-gaap_AssetsCurrent
Total current assets
us-gaap_InterestAndDebtExpense
Interest and other financing costs
Long-term assets
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
us-gaap_NonoperatingIncomeExpense
Other expenses, net
Preferred shares (par value $0.01, 20,000,000 shares authorized, 33,779 and 35,505 issued and outstanding, respectively)
Balance, January 1, 2014
Balance, December 31, 2014
Current Fiscal Year End Date
us-gaap_PreferredStockRedemptionAmount
Preferred Stock, Redemption Amount
us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent
Assets Held-for-sale, Not Part of Disposal Group, Current
Preferred shares, shares issued (in shares)
Other investment income
Total gain for period included in Investment income
Adjustments to reconcile net loss to net cash used in operating activities:
Statement of Financial Position [Abstract]
Preferred shares, shares authorized (in shares)
Document Fiscal Period Focus
Document Fiscal Year Focus
Vessel held for sale
us-gaap_InvestmentIncomeDividend
Investment Income, Dividend
Other income accrued
Preferred shares, par value (in dollars per share)
Document Period End Date
- Vessel held for sale
Document Type
- Sale of vessel
- Sale of vessel
us-gaap_OperatingIncomeLoss
Operating loss
Statement of Cash Flows [Abstract]
us-gaap_PropertyPlantAndEquipmentDisposals
Costs, Sale of a vessel
Costs, Sale of a vessel
us-gaap_PropertyPlantAndEquipmentTransfersAndChanges
Costs, vessel held for sale
Statement of Stockholders' Equity [Abstract]
Document Information [Line Items]
Costs, Vessel Acquisition
Document Information [Table]
us-gaap_InterestPaid
Interest Paid
us-gaap_PurchaseObligationDueInSecondYear
Purchase Obligation, Due in Second Year
Nonmonetary Transaction Type [Domain]
us-gaap_PurchaseObligationDueInNextTwelveMonths
Purchase Obligation, Due in Next Twelve Months
Cash paid for interest, net of capitalized expenses
Entity Filer Category
us-gaap_PropertyPlantAndEquipmentUsefulLife
Property, Plant and Equipment, Useful Life
Nonmonetary Transaction Type [Axis]
Entity Current Reporting Status
esea_WorkingCapitalDeficit
Working Capital Deficit
Represents the working capital deficit.
Entity Voluntary Filers
us-gaap_PreferredStockRedemptionPricePerShare
Preferred Stock, Redemption Price Per Share
Entity Well-known Seasoned Issuer
us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
us-gaap_PaymentsForDeposits
Cash paid for vessels under construction and vessel acquisition
Reverse Stock Split [Member]
The conversion of a reverse stock split where there is a reduction in the shares outstanding.
Advances for Vessels under Construction [Text Block]
Disclosure of advances for vessels under construction.
Prepaid expenses
us-gaap_PreferredStockDividendRatePercentage
Preferred Stock, Dividend Rate, Percentage
Thereafter
Interest Rate Swap [Member]
Dry-docking expenses
2020
Inventory
2021
Entity Central Index Key
2018
Entity Registrant Name
2019
Entity [Domain]
2017
Legal Entity [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Additional paid-in capital
Shareholders’ equity
Entity Common Stock, Shares Outstanding (in shares)
Interest Rate Contract [Member]
Inventory, Policy [Policy Text Block]
Cash flows from operating activities:
Statement [Line Items]
esea_VesselCarryingCapacity
Vessel Carrying Capacity
Represents the vessels carrying capacity in (dwt).
Trading Symbol
us-gaap_DerivativeNumberOfInstrumentsHeld
Derivative, Number of Instruments Held
Trade accounts receivable, net
esea_DebtInstrumentDeferredAmount
Debt Instrument, Deferred Amount
The amount of long-term debt installments deferred.
esea_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodFairValue
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Granted in Period, Fair Value
Fair value of equity instruments other than options granted. Excludes stock (or unit) options, for example, but not limited to, share units, stock appreciation rights, restricted stock.
esea_DebtInstrumentRefinanceTermNumberOfQuarterlyPayments
Debt Instrument, Refinance Term, Number of Quarterly Payments
The number of quarterly payments in case of extends or refinances of the long-term debt.
esea_DebtInstrumentRefinanceTermFirstPeriodicPayment
Debt Instrument, Refinance Term, First Periodic Payment
Amount of the required first periodic payments including both interest and principal payments in case of extends or refinance of the long-term debt.
us-gaap_Liabilities
Total liabilities
Noumea Shipping Ltd [Member]
Represents the entity of Noumea Shipping Ltd.
Commitments and contingencies
Adjustments for Change in Accounting Principle [Axis]
esea_DebtInstrumentRefinanceTermFourthPeriodicPayment
Debt Instrument, Refinance Term, Fourth Periodic Payment
Amount of the required fourth periodic payments including both interest and principal payments in case of extends or refinances of the long-term debt.
Adjustments for Change in Accounting Principle [Domain]
esea_DebtInstrumentrefinanceTermBalloonPaymentToBePaid
Debt Instrument,Refinance Term, Balloon Payment to be Paid
Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt in case of extends or refinances of the long-term debt.
Derivatives, Policy [Policy Text Block]
esea_DebtInstrumentRefinanceTermSecondPeriodicPayment
Debt Instrument, Refinance Term, Second Periodic Payment
Amount of the required second periodic payments including both interest and principal payments in case of extends or refinances of the long-term debt.
Fair Value, Inputs, Level 2 [Member]
esea_DebtInstrumentRefinanceTermThirdPeriodicPayment
Debt Instrument, Refinance Term, Third Periodic Payment
Amount of the required third periodic payments including both interest and principal payments in case of extends or refinances of the long-term debt.
Fair Value, Inputs, Level 3 [Member]
Vessel operating expenses, related party
Represents related party associated with vessel operating expenses.
Fair Value Hierarchy [Domain]
esea_DebtInstrumentNumberOfInstallmentsPaymentsDeferred
Debt Instrument Number of Installments Payments Deferred
The number of installments payments deferred.
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Fair Value, Inputs, Level 1 [Member]
Eirini Shipping Ltd and Eleni Shipping Ltd [Member]
Represents the entities of Eirini Shipping Ltd and Eleni Shipping Ltd.
Commissions paid to related party
Represents related party commissions.
Restricted cash
Fair Value, Hierarchy [Axis]
esea_CurrentPeriodReclassificationAdjustment
Current Period Reclassification Adjustment
The amount of a reclassification adjustment made to current period financial statement amounts.
Current assets
esea_DebtInstrumentPeriodicPaymentDeferred
Debt Instrument, Periodic Payment, Deferred
Amount of the required periodic payments deferred.
Equity and Cost Method Investments, Policy [Policy Text Block]
us-gaap_DueToRelatedPartiesCurrentAndNoncurrent
Due to Related Parties
us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Net increase / (decrease) in cash and cash equivalents
Equity Method Investments, Policy [Policy Text Block]
esea_DebtInstrumentThirdPeriodicPayment
Debt Instrument, Third Periodic Payment
Amount of the required third periodic payments including both interest and principal payments.
esea_DebtInstrumentFirstPeriodicPayment
Debt Instrument, First Periodic Payment
Amount of the required first periodic payments including both interest and principal payments.
esea_ReturnOfPaymentAndExpensesReceivable
Return of Payment and Expenses, Receivable
The amount of payments and expenses related to the refund guarantees made under the cancellation of a contract for new vessels.
Total derivative liabilities
Pantelis Shipping Corp [Member]
Represents the entity of Pantelis Shipping Corp.
Vessel Acquisition [Member]
Related to the acquisition of a vessel.
esea_PropertyPlantAndEquipmentValueToOutstandingFacilityAmount
Property, Plant and Equipment Value to Outstanding Facility Amount
The threshold, over which collateral pledged is released, of property, plant, and equipment value over the outstanding value of a facility taken by the company.
esea_DebtInstrumentNumberOfPeriodicPayments
Debt Instrument, Number of Periodic Payments
The number of periodic payments required by the agreement.
M/V Captain Costas [Member]
Related to the vessel Captain Costas.
us-gaap_NetCashProvidedByUsedInFinancingActivities
Net cash provided by / (used in) financing activities
us-gaap_PaymentsOfStockIssuanceCosts
Offering expenses paid
us-gaap_PaymentsOfDividends
Dividends paid
us-gaap_LongTermPurchaseCommitmentAmount
Long-term Purchase Commitment, Amount
us-gaap_PaymentsForRepurchaseOfCommonStock
Funds used for common stock buyback
us-gaap_StockholdersEquity
Total shareholders’ equity
Balance
Balance
Retained Earnings [Member]
Proceeds from issuance of preferred stock, net of commissions paid
us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock
Proceeds from Issuance of Convertible Preferred Stock
Additional Paid-in Capital [Member]
Proceeds from issuance of common stock, net of commissions paid
Proceeds from Issuance of Common Stock
Preferred Stock [Member]
Investment, Name [Domain]
Common Stock [Member]
Equity Components [Axis]
Investment, Name [Axis]
Equity Component [Domain]
Report Date [Axis]
Financial Statement Filing Date [Domain]
us-gaap_LongTermDebt
Long-term Debt
Total
Finance, Loans and Leases Receivable, Policy [Policy Text Block]
us-gaap_PaymentsOfFinancingCosts
Loan arrangement fees paid
Trade and Other Accounts Receivable, Policy [Policy Text Block]
us-gaap_PaymentsOfDebtIssuanceCosts
Payments of Debt Issuance Costs
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Non-vested on January 1, 2016 (in dollars per share)
Non-vested on December 31, 2016 (in dollars per share)
Cash and Cash Equivalents, Policy [Policy Text Block]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Granted (in dollars per share)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
Vested (in dollars per share)
Significant Accounting Policies [Text Block]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Non-vested on January 1, 2016 (in shares)
Non-vested on December 31, 2016 (in shares)
Income Tax Disclosure [Text Block]
Accounting Policies [Abstract]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Vested (in shares)
us-gaap_DeferredFinanceCostsNoncurrentNet
Deferred charges, long-term portion
us-gaap_DeferredFinanceCostsCurrentNet
Deferred Charges, current portion
us-gaap_RepaymentsOfLongTermDebt
Repayments of Long-term Debt
Repayment of long-term debt
us-gaap_DebtInstrumentCarryingAmount
Bank Loans
Loan from Related Party
Other receivables
us-gaap_ProceedsFromIssuanceOfLongTermDebt
Proceeds from Issuance of Long-term Debt
us-gaap_ProceedsFromRelatedPartyDebt
Proceeds from related party loan
Maximum [Member]
Minimum [Member]
Range [Axis]
Range [Domain]
Customer [Axis]
Customer [Domain]
Advances for vessels under construction and vessel acquisition deposits
Advances for Vessel Acquisition
Represents advances for vessel acquisition.
Voyage revenue
Voyage revenue
Revenues arising from services provided to charterers according to the terms and conditions included in charter agreements.
Financial Instruments Disclosure [Text Block]
Voyage expenses
Costs relating to the voyages performed by the vessels and may include port, canal, bunker expenses, commissions and other.
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Preferred Stock [Text Block]
us-gaap_EquityMethodInvestmentOwnershipPercentage
Equity Method Investment, Ownership Percentage
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Rounding of stock split
Represents the value of new shares due to rounding of the reverse stock split.
esea_IncreaseDecreaseInRetentionAccounts
Release of restricted cash
The net cash inflow or outflow for the increase (decrease) associated with retention accounts
Rounding of stock split (in shares)
Represents the new shares due to rounding of the reverse stock split.
Vesting [Axis]
Vesting [Domain]
Plan Name [Axis]
Plan Name [Domain]
Weighted average number of shares outstanding during the year, basic and diluted (in shares)
us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Weighted average common shares – Outstanding (in shares)
us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Related Party Transaction, Expenses from Transactions with Related Party
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Other general and administrative expenses, related party
Loss per share attributable to common shareholders - basic and diluted (in dollars per share)
Earnings Per Share, Basic and Diluted
Award Type [Axis]
Equity Award [Domain]
us-gaap_RelatedPartyTransactionAmountsOfTransaction
Related Party Transaction, Amounts of Transaction
Related Party Transaction [Axis]
Related Party Transaction [Domain]
us-gaap_RepaymentsOfDebt
Repayments of Debt
Scenario, Forecast [Member]
Scenario, Unspecified [Domain]
Related Party [Domain]
Scenario [Axis]
Related Party [Axis]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Related Party Transactions Disclosure [Text Block]
Inventory [Domain]
Inventory [Axis]
esea_TaxRateOnUsSourceShippingIncome
Tax Rate on US Source Shipping Income
The percentage of tax applied to US source shipping income under section 883 of US Internal Revenue Code.
Litigation Status [Domain]
Schedule of Accrued Liabilities [Table Text Block]
Statement [Table]
esea_UsSourceGrossTransportationIncomeAsPercentageOfGrossTransportationShippingIncome
US Source Gross Transportation Income as Percentage of Gross Transportation Shipping Income
Percentage of US source gross transportation income of the gross transportation shipping income that is subject to US Federal Income tax unless section 883 exemption of US Internal Revenue Code is reached.
Pending Litigation [Member]
esea_UsFederalGrossTransportationIncomeTaxRate
US Federal Gross Transportation Income Tax Rate
The percentage of tax applied to United States gross transportation income under section 883 of US Internal Revenue Code if exemption it not met.
Litigation Case [Domain]
esea_UnrecognizedTaxExpenseForUsSourceShippingIncome
Unrecognized Tax Expense For US Source Shipping Income
The estimated unrecognized tax expense for US source shipping Income as a result of not qualifying for section 883 of US Internal Revenue Code exemption.
Litigation Status [Axis]
Litigation Case [Axis]
Commitments and Contingencies Disclosure [Text Block]
us-gaap_LiabilitiesNoncurrent
Total long-term liabilities
Income Statement [Abstract]
invest_DerivativeNotionalAmount
Derivative, Notional Amount
us-gaap_NetCashProvidedByUsedInInvestingActivities
Net cash used in investing activities
Cash flows from financing activities:
us-gaap_IncreaseDecreaseInRestrictedCash
Increase in restricted cash
us-gaap_DerivativeFairValueOfDerivativeLiability
Interest rate swap contracts, current and long-term portion
Derivatives
Derivative Contract [Domain]
Derivative Instrument [Axis]
Title of Individual [Axis]
Relationship to Entity [Domain]
Long-term debt, net of current portion
Long-term debt, long-term portion net of deferred charges
Fair Value Measurements, Nonrecurring [Table Text Block]
Equity loss in joint venture
Income (Loss) from Equity Method Investments
Interim Period, Costs Not Allocable [Domain]
Nature of Expense [Axis]
Series B Preferred Stock [Member]
Long-term liabilities
us-gaap_GainLossOnContractTermination
Gain (Loss) on Contract Termination
us-gaap_LiabilitiesCurrent
Total current liabilities
Loss on derivatives, net
Due to related company
Loan from related party
Liabilities from assets held for sale
Disposal Group, Including Discontinued Operation, Liabilities, Current
Class of Stock [Axis]
Class of Stock [Domain]
Schedule of Stockholders Equity [Table Text Block]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Interest rate swap contracts
Derivatives
us-gaap_UnrealizedGainLossOnDerivatives
Unrealized gain on derivatives
Deferred revenues
Investment Income [Table Text Block]
Long-term debt, current portion
Long-term debt, current portion net of deferred charges
Counterparty Name [Domain]
Not Designated as Hedging Instrument [Member]
Hedging Designation [Axis]
Counterparty Name [Axis]
Hedging Designation [Domain]
us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid
us-gaap_DebtInstrumentPeriodicPayment
Debt Instrument, Periodic Payment
us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Debt Instrument, Basis Spread on Variable Rate
Capital expenditures included in liabilities
us-gaap_DebtInstrumentInterestRateStatedPercentage
Debt Instrument, Interest Rate, Stated Percentage
us-gaap_OperatingExpenses
Total operating expenses
Other general and administrative expenses (including $2,000,000, $2,000,000 and $2,000,000, respectively, to related party)
us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Trade accounts payable
Other investment, impairment loss
esea_OtherInvestmentOtherThanTemporaryImpairment
Other Investment, Other than Temporary Impairment
Impairment of other investment
This item represents an impairment that has been recognized on other investments.
Schedule of Nonvested Share Activity [Table Text Block]
Shares issued as consideration for vessel acquisition including inventory on-board
Impairment loss and loss on write-down of vessel held for sale
The portion of asset impairment associated with a related party.
Offering expenses accrued
esea_NumberOfVesselsAcquired
Number of Vessels Acquired
The number of vessels acquired during the period.
us-gaap_DebtInstrumentFaceAmount
Debt Instrument, Face Amount
Issuance of shares for vessel acquisition, net of issuance costs
The value of stock issued to acquire a vessel during the period.
esea_NumberOfVesselsSold
Number of Vessels Sold
The number of vessels sold during the period.
Restricted Cash [Member]
Related to restricted cash.
esea_CommitmentsAndVesselSalesDrawdownCapacity
Commitments and Vessel Sales, Draw-down Capacity
The amount of proceeds the company may draw upon related to certain commitments and vessel sales.
us-gaap_AccruedLiabilitiesCurrent
Accrued expenses
Total
esea_ProceedsFromMortgageOnVessel
Proceeds from Mortgage on Vessel
Proceeds during the period from the mortgage of a vessel owned by the company.
Accrued interest and commitment fees
esea_PeriodicPaymentRequiredForConstructionOfVessel
Periodic Payment Required for Construction of Vessel
The monetary amount of certain periodic payments that are required to be made by the company for construction of a vessel to be delivered to the company.
Subsequent Event [Member]
Charterer KLAVENESS [Member]
Related to the charterer KLAVENESS.
Charterer CMA [Member]
Related to the charterer CMA.
Subsequent Event Type [Axis]
Charterer GSS [Member]
Related to the charterer GSS.
Subsequent Event Type [Domain]
us-gaap_DebtInstrumentCollateralAmount
Debt Instrument, Collateral Amount
Loan arrangement fees accrued
Charterer MSC [Member]
Related to the charterer MSC.
Vessels [Policy Text Block]
Policy disclosure of vessels owned by the company.
Financing, and investing activities fees:
Assets Held For Sale [Policy Text Block]
Disclosure of the accounting policy for assets held for sale by the company.
esea_ShipOwningCrewContractTerm
Ship Owning Crew Contract Term
Represents the contract term crews contracted with ship-owning companies.
Advance received for vessel held for sale
Deferred Charges, Net, Presented as a Contra Account to Related Debt Liability [Member]
A change in accounting guidance adopted by the company presenting "Deferred Charges, Net" as a contra account to the company's related debt liability.
Proceeds from sale of vessels
Proceeds from Sale of Property, Plant, and Equipment
Subsequent Events [Text Block]
Victualling [Member]
Related to inventories of victualling.
Bunkers [Member]
Related to the inventory of bunkers.
Drydocking and Special Survey Expenses [Policy Text Block]
Represents drydocking and special survey expenses policy.
Supplemental cash flow information
London Interbank Offered Rate (LIBOR) [Member]
Lubricant [Member]
Related to inventories of lubricants.
Accrued payroll expenses
Ultramax Drybulk Carriers [Member]
Related to ultramax drybulk carrier hulls.
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Other accrued expenses
Variable Rate [Axis]
Variable Rate [Domain]
esea_NumberOfVesselsDisposedOrSold
Number of Vessels Disposed or Sold
Represents the number of vessels sold during the period.
us-gaap_LongTermDebtFairValue
Long-term Debt, Fair Value
Schedule of Long-term Debt Instruments [Table Text Block]
esea_SalesCommissionPercentage
Sales Commission Percentage
Represents sales commissions percentage on sale of property plant and equipment assets.
M/V Tasos [Member]
Related to the vessel M/V Tasos
Accrued commissions
Vessel acquisition deposits
Deposits made by the company for vessel acquisition during the period.
Despina P [Member]
Related to the vessel Despina P.
Payable to Manager [Member]
Portion of the commission that is payable to the manager.
Business Description and Basis of Presentation [Text Block]
Tiger Bridge [Member]
Related to the vessel Tiger Bridge.
Marinos [Member]
Related to the vessel Marinos.
us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Payments to Acquire Property, Plant, and Equipment
Purchase of a vessel
M/V Aristides [Member]
Related to the vessel Aristides.
us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Gain (Loss) on Disposition of Property Plant Equipment
Net gain on sale of vessels (including $0, $77,022 and $27,741 to related party)
Net gain on sale of vessels
Current liabilities
us-gaap_Assets
Total assets
Impairment loss and loss on write-down of vessel held for sale
Impairment loss and loss on write-down of vessel held for sale (including $0, $28,055 and $29,469, respectively, to related party)
Asset Impairment Charges
Long-term Debt [Text Block]
us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Stockholders' Equity Note, Stock Split, Conversion Ratio
us-gaap_SharesIssuedPricePerShare
Shares Issued, Price Per Share
Stockholders' Equity Note Disclosure [Text Block]
us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Line of Credit Facility, Commitment Fee Percentage
us-gaap_EscrowDeposit
Escrow Deposit
us-gaap_RestrictedCashAndCashEquivalents
Restricted Cash and Cash Equivalents
esea_PaymentsForAcquisitionCostsPropertyPlantAndEquipment
Payments for Acquisition Costs, Property Plant, and Equipment
The amount of acquisition related costs incurred in the purchase of certain property, plant, and equipment assets.
Affiliated Entity [Member]
Net loss attributable to common shareholders
Net loss attributable to common shareholders
Net loss attributable to common shareholders
esea_PropertyPlantAndEquipmentPledgedAsCollateral
Property Plant and Equipment Pledged As Collateral
Carrying amount as of the balance sheet date of property, plant, and equipment that have been pledged as security for loans.
Cash and Cash Equivalents [Domain]
esea_ServiceManagementCostsDailyFeeRelatedParty
Service Management Costs Daily Fee Related Party
The aggregate costs related to vessel management fees.
Cash [Member]
M/V Eleni P [Member]
Related to the vessel Eleni P.
Eurobulk Ltd. [Member]
Represents the Eurobulk Ltd.
esea_PropertyPlantAndEquipmentTransfersAndChangesNet
Net book value, vessel held for sale
Amount of reclassification, impairment, donation, or other change net of accumulated depreciation to long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.
Cash and Cash Equivalents [Axis]
Deferred Charges [Text Block]
The entire disclosure for deferred charges.
Vessel Management Fees (Member)
Represents the vessel management fees.
esea_RelatedPartyTransactionCommissionPercentage
Related Party Transaction Commission, Percentage
The percentage of the related party transaction commission.
Eurochart [Member]
Represents the Eurochart.
us-gaap_PreferredStockDividendsIncomeStatementImpact
Dividends to Series B preferred shares
Vessel Sales [Member]
Represents the vessel sales.
esea_WriteoffOfCommitmentFees
Write-off of loan commitment fees
The write-off of loan commitment fees due to the cancellation of certain contracts.
esea_RelatedPartyTransactionCommissionOnPremiumMaximumPercentage
Related Party Transaction Commission on Premium, Maximum, Percentage
Represents the the maximum percentage of commission on premium to be paid to a related party.
Net loss
Net loss
Charter Revenues [Member]
Represents the charter revenues.
esea_RelatedPartyAgreementTerm
Related Party Agreement Term
Related Party Agreement Term
esea_RelatedPartyTransactionAmountsOfTransactionPerCrewMemberPerMonth
Related Party Transaction Amounts of Transaction Per Crew Member Per Month
Represents the related party transaction amounts of transaction per crew member per month.
esea_RelatedPartyTransactionDiscountPercentage
Related Party Transaction Discount Percentage
Related party transaction discount percentage.
Sentinel [Member]
Represents the sentinel.
Lender Name [Axis]
esea_LimitedDividendsPercentageLoansToProfits
Limited Dividends Percentage Loans to Profits
Represents the limited dividends percentage loans to profits.
Accrued general and administrative expenses
Represents accrued general and administrative expenses.
Technomar [Member]
Represents Technomar.
Line of Credit Facility, Lender [Domain]
esea_RelatedPartyTransactionDailyFeePerVesselPerDayInLayUp
Related Party Transaction Daily Fee Per Vessel Per Day in Lay Up
Related Party Transaction Daily Fee Per Vessel Per Day In Lay Up
esea_ImputedInterest
Imputed Interest
Represents imputed interest.
esea_NumberOfVessels
Number of Vessels
The number of vessels for which the carrying value is shown on the Company's balance sheet.
Finance Construction of Hull No DY 160 [Member]
Represents finance construction of Hull No DY 160.
esea_RelatedPartyTransactionDailyFeePerVesselPerDayInOperation
Related Party Transaction Daily Fee Per Vessel Per Day in Operation
Related Party Transaction Daily Fee Per Vessel Per Day In Operation
esea_TermLoanFacilityMaximumBorrowingCapacity
Term Loan Facility Maximum Borrowing Capacity
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.
Fixed Management Fees [Member]
Related to fixed management fees.
esea_TermLoanFacilityMaximumBorrowingCapacityAsAPercentageOfVesselMarketValueUponDeliveryCharterFree
Term Loan Facility Maximum Borrowing Capacity as a Percentage of Vessel Market Value Upon Delivery Charter Free
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.
After Discount [Member]
Related to the amount paid after discount.
esea_TermLoanFacilityMaximumBorrowingCapacityAsAPercentageOfVesselMarketValueUponDelivery
Term Loan Facility Maximum Borrowing Capacity as a Percentage of Vessel Market Value Upon Delivery
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.
Xingang Shipping Ltd. / Alcinoe Shipping Ltd Borrower [Member]
Represents Xingang Shipping Ltd. / Alcinoe Shipping Ltd Borrower.
Schedule of Future Annual Loan Repayments [Table Text Block]
Represents the tabular disclosure of the schedule of future annual loan repayments.
Accumulated Depreciation
Accumulated Depreciation
us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Saf-Concord Shipping Ltd. Borrower [Member]
Represents Saf-Concord Shipping Ltd. Borrower.
Restricted Stock [Member]
Vessels, net
Net Book Value
Net Book Value
Manolis Shipping Ltd. Borrower [Member]
Represents Manolis Shipping Ltd. Borrower.
M/V RT Dagr [Member]
Related to the vessel RT Dagr.
us-gaap_PropertyPlantAndEquipmentGross
Costs
Costs
Pantelis Shipping Corp. Borrower [Member]
Represents Pantelis Shipping Corp. Borrower.
Eirini Shipping Ltd. [Member]
Represents Eirini Shipping Ltd.
Noumea Shipping Ltd. Borrower [Member]
Represents Noumea Shipping Ltd. Borrower.
Supplemental Agreement With HSBC Bank [Member]
Related to the supplemental agreement with HSBC Bank.
Euroseas Ltd (Member)
Represents Euroseas Ltd.
esea_DebtInstrumentPeriodicPaymentTermsBulletPaymentToBePaid
Debt Instrument Periodic Payment Terms Bullet Payment To Be Paid
Amount of payment greater than the preceding balloon payments to be paid at final maturity date of debt.
esea_NumberOfVesselsUnderConstruction
Number of Vessels Under Construction
Represents the number of vessels under construction.
Euromar LLC, The Joint Venture [Member]
Information pertaining to Euromar LLC, the Joint Venture.
esea_DebtInstrumentMinimumCashBalance
Debt Instrument Minimum Cash Balance
Represents debt instrument minimum cash balance.
esea_LimitedLiabilityCompanyLlcAmountOfEscrowedCashExchangedForEachPreferredUnit
Limited Liability Company, LLC, Amount of Escrowed Cash Exchanged for Each Preferred Unit
Escrowed cash exchanged for each preferred unit.
Supplemental Agreement with Noumea Shipping [Member]
Related to the supplemental agreement with Noumea Shipping.
esea_DifferenceBetweenFairValueAndCarryingValue
Difference Between Fair Value and Carrying Value
Represents the difference between fair value and carrying value.
Derivative Instruments, Gain (Loss) [Table Text Block]
esea_ShareBasedCompensationArrangementByShareBasedPaymentAwardedTerm
Share Based Compensation Arrangement By Share Based Payment Awarded Term
Represents the term by which awards will be made.
esea_NumberOfKeyPeopleIssuedAwards
Number of Key People Issued Awards
The number of key people issued awards.
Fixed assets
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Vesting November 16, 2015 [Member]
Related to the awards that vest November 16, 2015.
us-gaap_DisclosureTextBlockAbstract
Notes to Financial Statements
Vesting November 16, 2016 [Member]
Related to awards vesting November 16, 2016.
The 2014 Plan [Member]
Related to the 2014 plan.
us-gaap_FairValueAssumptionsExpectedDividendRate
Fair Value Assumptions, Expected Dividend Rate
The 19 Key Persons [Member]
Related to the 19 key persons given awards.
us-gaap_SalesCommissionsAndFees
Commissions (including, $517,828 $475,792 and $372,806, respectively, to related party)
Officers and Directors [Member]
Related to certain officers and directors.
Eurobulk Employees [Member]
Related to employees of Eurobulk.
Other income/(expenses)
Vesting on November 1, 2017 [Member]
Related to awards vesting November 1, 2017.
Vesting on November 1, 2018 [Member]
Related to awards vesting November 1, 2018.
Vesting on July 1, 2016 [Member]
Related to awards vesting July 1, 2016.
Vesting on July 1, 2017 [Member]
Related to awards vesting July 1, 2017.
Vessel operating expenses (including, $347,363, $305,150 and $233,077, respectively, to related party)
Port Charges and Canal Dues [Member]
Related to port charges and canal dues.
Crew Wages and Related Costs [Member]
Related to crew wages and related costs.
Vessel Voyage and Operating Expenses [Text Block]
This element repsresents the disclosure for Voyage expenses (Port charges, bunkers, commissions charged by third parties, commissions charged by related parties) and Vessel Operating expenses (crew wages and related costs, insurances, repairs, spares and maintenance, consumable stores, tonnage taxes, miscellaneous).
Schedule of Voyage Vessel Operating Expenses and Commissions [Table Text Block]
Tabular disclosure of voyage, vessel operating expenses and commissions.
Fair Value, Measurements, Nonrecurring [Member]
Measurement Frequency [Axis]
Lubricants [Member]
Related to lubricants.
Fair Value, Measurement Frequency [Domain]
Spares and Consumable Stores [Member]
Related to spares and consumable stores.
Use of Estimates, Policy [Policy Text Block]
Insurance [Member]
Related to insurance.
New Accounting Pronouncements, Policy [Policy Text Block]
Repairs and Maintenance [Member]
Related to repairs and maintenance.
us-gaap_NumberOfReportableSegments
Number of Reportable Segments
Earnings Per Share [Text Block]
Interest Rate Swap One [Member]
Related to the first interest rate swap.
us-gaap_NetCashProvidedByUsedInOperatingActivities
Net cash used in operating activities
us-gaap_PriorPeriodReclassificationAdjustment
Prior Period Reclassification Adjustment
Interest Rate Swap Two [Member]
Related to the second interest rate swap.
Cash flows from investing activities:
Professional and Legal Fees [Member]
Related to professional and legal fees.
Other Vessel Operating Expenses [Member]
Related to other expenses.
November 28, 2017 [Member]
Related to November 28, 2017.
May 28, 2019 [Member]
Related to May 28, 2019.
First Two Contracts [Member]
Related to the first two interest rate swaps.
November 28, 2016 [Member]
Related to the date November 28, 2016.