2.4.0.6 Html 241 432 1 false 124 0 false 5 false false R1.htm 00100 - Document - Document and Entity Information Sheet http://www.seanergymaritime.com/role/DocumentDocumentAndEntityInformation Document and Entity Information true false R2.htm 00200 - Statement - Consolidated Balance Sheets Sheet http://www.seanergymaritime.com/role/StatementConsolidatedBalanceSheets Consolidated Balance Sheets false false R3.htm 00210 - Statement - Consolidated Balance Sheets (Parentheticals) Sheet http://www.seanergymaritime.com/role/StatementConsolidatedBalanceSheetsParentheticals Consolidated Balance Sheets (Parentheticals) false false R4.htm 00300 - Statement - Consolidated Statements of Income/(Loss) Sheet http://www.seanergymaritime.com/role/StatementConsolidatedStatementsOfIncomeLoss Consolidated Statements of Income/(Loss) false false R5.htm 00400 - Statement - Consolidated Statements of Changes in Equity Sheet http://www.seanergymaritime.com/role/StatementConsolidatedStatementsOfChangesInEquity Consolidated Statements of Changes in Equity false false R6.htm 00500 - Statement - Consolidated Statements of Cash Flows Sheet http://www.seanergymaritime.com/role/StatementConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows false false R7.htm 01000 - Disclosure - Basis of Presentation and General Information Sheet http://www.seanergymaritime.com/role/DisclosureBasisOfPresentationAndGeneralInformation Basis of Presentation and General Information false false R8.htm 01150 - Disclosure - Transactions with Related Parties Sheet http://www.seanergymaritime.com/role/DisclosureTransactionsWithRelatedParties Transactions with Related Parties false false R9.htm 01200 - Disclosure - Cash and Cash Equivalents Sheet http://www.seanergymaritime.com/role/DisclosureCashAndCashEquivalents Cash and Cash Equivalents false false R10.htm 01250 - Disclosure - Restricted Cash Sheet http://www.seanergymaritime.com/role/DisclosureRestrictedCash Restricted Cash false false R11.htm 01300 - Disclosure - Due from/due to Related Parties Sheet http://www.seanergymaritime.com/role/DisclosureDueFromDueToRelatedParties Due from/due to Related Parties false false R12.htm 01350 - Disclosure - Inventories Sheet http://www.seanergymaritime.com/role/DisclosureInventories Inventories false false R13.htm 01400 - Disclosure - Other Current Assets Sheet http://www.seanergymaritime.com/role/DisclosureOtherCurrentAssets Other Current Assets false false R14.htm 01450 - Disclosure - Vessels,Net Sheet http://www.seanergymaritime.com/role/DisclosureVesselsNet Vessels,Net false false R15.htm 01550 - Disclosure - Deferred Charges Sheet http://www.seanergymaritime.com/role/DisclosureDeferredCharges Deferred Charges false false R16.htm 01600 - Disclosure - Long-Term Debt Sheet http://www.seanergymaritime.com/role/DisclosureLongTermDebt Long-Term Debt false false R17.htm 01620 - Disclosure - Trade accounts and other payables Sheet http://www.seanergymaritime.com/role/DisclosureTradeAccountsAndOtherPayables Trade accounts and other payables false false R18.htm 01650 - Disclosure - Financial Instruments Sheet http://www.seanergymaritime.com/role/DisclosureFinancialInstruments Financial Instruments false false R19.htm 01700 - Disclosure - Deferred Revenue Sheet http://www.seanergymaritime.com/role/DisclosureDeferredRevenue Deferred Revenue false false R20.htm 01750 - Disclosure - Commitments and Contingencies Sheet http://www.seanergymaritime.com/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies false false R21.htm 01800 - Disclosure - Capital Structure Sheet http://www.seanergymaritime.com/role/DisclosureCapitalStructure Capital Structure false false R22.htm 01900 - Disclosure - Direct Voyage Expenses and Vessel Operating Expenses Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDirectVoyageExpensesAndVesselOperatingExpenses Direct Voyage Expenses and Vessel Operating Expenses false false R23.htm 01950 - Disclosure - General and Administration Expenses Sheet http://www.seanergymaritime.com/role/DisclosureGeneralAndAdministrationExpenses General and Administration Expenses false false R24.htm 02000 - Disclosure - General and Administration Expenses-Related Party Sheet http://www.seanergymaritime.com/role/DisclosureGeneralAndAdministrationExpensesRelatedParty General and Administration Expenses-Related Party false false R25.htm 02050 - Disclosure - Interest and Finance Costs Sheet http://www.seanergymaritime.com/role/DisclosureInterestAndFinanceCosts Interest and Finance Costs false false R26.htm 02200 - Disclosure - (Loss)/Earnings per Share Sheet http://www.seanergymaritime.com/role/DisclosureLossEarningsPerShare (Loss)/Earnings per Share false false R27.htm 02205 - Disclosure - Equity Incentive Plan Sheet http://www.seanergymaritime.com/role/DisclosureEquityIncentivePlan Equity Incentive Plan false false R28.htm 02208 - Disclosure - Subsequent Events Sheet http://www.seanergymaritime.com/role/DisclosureSubsequentEvents Subsequent Events false false R29.htm 02210 - Disclosure - Significant Accounting Policies (Policy) Sheet http://www.seanergymaritime.com/role/DisclosureSignificantAccountingPoliciesPolicy Significant Accounting Policies (Policy) false false R30.htm 02214 - Disclosure - Basis of Presentation and General Information-Disposal of Subsidiary (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureBasisOfPresentationAndGeneralInformationDisposalOfSubsidiaryTables Basis of Presentation and General Information-Disposal of Subsidiary (Tables) false false R31.htm 02223 - Disclosure - Basis of Presentation and General Information-Subsidiaries in Consolidation (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureBasisOfPresentationAndGeneralInformationSubsidiariesInConsolidationTables Basis of Presentation and General Information-Subsidiaries in Consolidation (Tables) false false R32.htm 02237 - Disclosure - Significant Accounting Policies-Concentration of Credit Risk (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureSignificantAccountingPoliciesConcentrationOfCreditRiskTables Significant Accounting Policies-Concentration of Credit Risk (Tables) false false R33.htm 02258 - Disclosure - Cash and Cash Equivalents (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCashAndCashEquivalentsTables Cash and Cash Equivalents (Tables) false false R34.htm 02290 - Disclosure - Inventories (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureInventoriesTables Inventories (Tables) false false R35.htm 02310 - Disclosure - Other Current Assets (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureOtherCurrentAssetsTables Other Current Assets (Tables) false false R36.htm 02330 - Disclosure - Vessels,Net (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureVesselsNetTables Vessels,Net (Tables) false false R37.htm 02410 - Disclosure - Deferred Charges (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDeferredChargesTables Deferred Charges (Tables) false false R38.htm 02445 - Disclosure - Long-Term Debt (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureLongTermDebtTables Long-Term Debt (Tables) false false R39.htm 02451 - Disclosure - Trade accounts and other payables (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTradeAccountsAndOtherPayablesTables Trade accounts and other payables (Tables) false false R40.htm 02455 - Disclosure - Financial Instruments (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureFinancialInstrumentsTables Financial Instruments (Tables) false false R41.htm 02480 - Disclosure - Commitments And Contingencies-Office Rent (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCommitmentsAndContingenciesOfficeRentTables Commitments And Contingencies-Office Rent (Tables) false false R42.htm 02545 - Disclosure - Direct Voyage Expenses and Vessel Operating Expenses (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDirectVoyageExpensesAndVesselOperatingExpensesTables Direct Voyage Expenses and Vessel Operating Expenses (Tables) false false R43.htm 02550 - Disclosure - Vessel Operating Expenses (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureVesselOperatingExpensesTables Vessel Operating Expenses (Tables) false false R44.htm 02570 - Disclosure - General and Administration Expenses (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureGeneralAndAdministrationExpensesTables General and Administration Expenses (Tables) false false R45.htm 02600 - Disclosure - General and Administrative Expenses-Related Party (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureGeneralAndAdministrativeExpensesRelatedPartyTables General and Administrative Expenses-Related Party (Tables) false false R46.htm 02620 - Disclosure - Interest and Finance Costs (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureInterestAndFinanceCostsTables Interest and Finance Costs (Tables) false false R47.htm 02650 - Disclosure - (Loss) earnings per Share (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureLossEarningsPerShareTables (Loss) earnings per Share (Tables) false false R48.htm 02730 - Disclosure - Subsequent Events (Tables) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureSubsequentEventsTables Subsequent Events (Tables) false false R49.htm 03000 - Disclosure - Basis of Presentation and General Information (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureBasisOfPresentationAndGeneralInformationDetails Basis of Presentation and General Information (Details) false false R50.htm 03010 - Disclosure - Basis of Presentation and General Information-Disposal of Subsidiary (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureBasisOfPresentationAndGeneralInformationDisposalOfSubsidiaryDetails Basis of Presentation and General Information-Disposal of Subsidiary (Details) false false R51.htm 03020 - Disclosure - Basis of Presentation and General Information-Disposal of Subsidiary (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureBasisOfPresentationAndGeneralInformationDisposalOfSubsidiaryTableDetails Basis of Presentation and General Information-Disposal of Subsidiary (Table) (Details) false false R52.htm 03030 - Disclosure - Basis of Presentation and General Information-Going Concern (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureBasisOfPresentationAndGeneralInformationGoingConcernDetails Basis of Presentation and General Information-Going Concern (Details) false false R53.htm 03040 - Disclosure - Basis of Presentation and General Information-Subsidiaries in Consolidation (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureBasisOfPresentationAndGeneralInformationSubsidiariesInConsolidationTablesDetails Basis of Presentation and General Information-Subsidiaries in Consolidation (Table) (Details) false false R54.htm 03050 - Disclosure - Significant Accounting Policies (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureSignificantAccountingPoliciesDetails Significant Accounting Policies (Details) false false R55.htm 03060 - Disclosure - Significant Accounting Policies-Concentration of Credit Risk (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureSignificantAccountingPoliciesConcentrationOfCreditRiskTableDetails Significant Accounting Policies-Concentration of Credit Risk (Table) (Details) false false R56.htm 03070 - Disclosure - Transactions with Related Parties-Management Agreements (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTransactionsWithRelatedPartiesManagementAgreementsDetails Transactions with Related Parties-Management Agreements (Details) false false R57.htm 03080 - Disclosure - Transactions with Related Parties-Equity Injection (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTransactionsWithRelatedPartiesEquityInjectionDetails Transactions with Related Parties-Equity Injection (Details) false false R58.htm 03090 - Disclosure - Transactions with Related Parties-Subsidiary Disposal (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTransactionsWithRelatedPartiesSubsidiaryDisposalDetails Transactions with Related Parties-Subsidiary Disposal (Details) false false R59.htm 03100 - Disclosure - Transactions with related parties-Charter agreements (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTransactionsWithRelatedPartiesCharterAgreementsDetails Transactions with related parties-Charter agreements (Details) false false R60.htm 03110 - Disclosure - Transactions with related parties-Brokerage agreements (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTransactionsWithRelatedPartiesBrokerageAgreementsDetails Transactions with related parties-Brokerage agreements (Details) false false R61.htm 03120 - Disclosure - Transactions with related parties-Property lease agreements (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTransactionsWithRelatedPartiesPropertyLeaseAgreementsDetails Transactions with related parties-Property lease agreements (Details) false false R62.htm 03130 - Disclosure - Cash and Cash Equivalents (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCashAndCashEquivalentsTableDetails Cash and Cash Equivalents (Table) (Details) false false R63.htm 03140 - Disclosure - Restricted Cash (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureRestrictedCashDetails Restricted Cash (Details) false false R64.htm 03150 - Disclosure - Due from/due to Related Parties (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDueFromDueToRelatedPartiesDetails Due from/due to Related Parties (Details) false false R65.htm 03160 - Disclosure - Inventories (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureInventoriesTableDetails Inventories (Table) (Details) false false R66.htm 03170 - Disclosure - Other Current Assets (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureOtherCurrentAssetsTableDetails Other Current Assets (Table) (Details) false false R67.htm 03180 - Disclosure - Vessels,Net (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureVesselsNetTableDetails Vessels,Net (Table) (Details) false false R68.htm 03190 - Disclosure - Vessels,Net (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureVesselsNetDetails Vessels,Net (Details) false false R69.htm 03200 - Disclosure - Deferred Charges (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDeferredChargesDetails Deferred Charges (Details) false false R70.htm 03210 - Disclosure - Deferred Charges (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDeferredChargesTableDetails Deferred Charges (Table) (Details) false false R71.htm 03220 - Disclosure - Long-Term Debt (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureLongTermDebtTableDetails Long-Term Debt (Table) (Details) false false R72.htm 03230 - Disclosure - Long-Term Debt (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureLongTermDebtDetails Long-Term Debt (Details) false false R73.htm 03240 - Disclosure - Trade accounts and other payables (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureTradeAccountsAndOtherPayablesTableDetails Trade accounts and other payables (Table) (Details) false false R74.htm 03250 - Disclosure - Financial Instruments-Recurring Fair Value Measurements (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureFinancialInstrumentsRecurringFairValueMeasurementsTableDetails Financial Instruments-Recurring Fair Value Measurements (Table) (Details) false false R75.htm 03260 - Disclosure - Financial Instruments-Non Recurring Fair Value Measurements (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureFinancialInstrumentsNonRecurringFairValueMeasurementsTableDetails Financial Instruments-Non Recurring Fair Value Measurements (Table) (Details) false false R76.htm 03270 - Disclosure - Financial Instruments-Derivatives Not Designated As Hedging Instruments (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureFinancialInstrumentsLossOnInterestRateSwapsTableDetails Financial Instruments-Derivatives Not Designated As Hedging Instruments (Table) (Details) false false R77.htm 03280 - Disclosure - Financial Instruments (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureFinancialInstrumentsDetails Financial Instruments (Details) false false R78.htm 03290 - Disclosure - Deferred Revenue (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDeferredRevenueDetails Deferred Revenue (Details) false false R79.htm 03300 - Disclosure - Commitments And Contingencies (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCommitmentsAndContingenciesDetails Commitments And Contingencies (Details) false false R80.htm 03310 - Disclosure - Commitments And Contingencies-Office Rent (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCommitmentsAndContingenciesOfficeRentTableDetails Commitments And Contingencies-Office Rent (Table) (Details) false false R81.htm 03320 - Disclosure - Capital Structure-Common Stock (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCapitalStructureCommonStockDetails Capital Structure-Common Stock (Details) false false R82.htm 03330 - Disclosure - Capital Structure-Warrants (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCapitalStructureWarrantsDetails Capital Structure-Warrants (Details) false false R83.htm 03340 - Disclosure - Capital Structure-Preferred Stock (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureCapitalStructurePreferredStockDetails Capital Structure-Preferred Stock (Details) false false R84.htm 03360 - Disclosure - Direct Voyage Expenses (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureDirectVoyageExpensesTableDetails Direct Voyage Expenses (Table) (Details) false false R85.htm 03370 - Disclosure - Vessel Operating Expenses (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureVesselOperatingExpensesTableDetails Vessel Operating Expenses (Table) (Details) false false R86.htm 03380 - Disclosure - General and Administration Expenses (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureGeneralAndAdministrationExpensesTableDetails General and Administration Expenses (Table) (Details) false false R87.htm 03390 - Disclosure - Other General and Administration Expenses (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureOtherGeneralAndAdministrationExpensesDetails Other General and Administration Expenses (Details) false false R88.htm 03400 - Disclosure - General and Administrative Expenses-Related Party (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureGeneralAndAdministrativeExpensesRelatedPartyTableDetails General and Administrative Expenses-Related Party (Table) (Details) false false R89.htm 03410 - Disclosure - Interest and Finance Costs (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureInterestAndFinanceCostsTableDetails Interest and Finance Costs (Table) (Details) false false R90.htm 03420 - Disclosure - (Loss) earnings per share (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureLossEarningsPerShareTableDetails (Loss) earnings per share (Table) (Details) false false R91.htm 03430 - Disclosure - (Loss) earnings per share (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureLossEarningsPerShareDetails (Loss) earnings per share (Details) false false R92.htm 03440 - Disclosure - (Loss) earnings per share potentially dilutive securities (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureLossEarningsPerSharePotentiallyDilutiveSecuritiesTableDetails (Loss) earnings per share potentially dilutive securities (Table) (Details) false false R93.htm 03450 - Disclosure - Equity incentive plan (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureEquityIncentivePlanTableDetails Equity incentive plan (Table) (Details) false false R94.htm 03460 - Disclosure - Subsequent Events (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureSubsequentEventsDetails Subsequent Events (Details) false false R95.htm 03470 - Disclosure - Subsequent Events (Table) (Details) Sheet http://www.seanergymaritime.com/2012-12-31/role/DisclosureSubsequentEventsTableDetails Subsequent Events (Table) (Details) false false All Reports Book All Reports Process Flow-Through: 00200 - Statement - Consolidated Balance Sheets Process Flow-Through: Removing column 'Dec. 31, 2010' Process Flow-Through: Removing column 'Dec. 31, 2009' Process Flow-Through: 00210 - Statement - Consolidated Balance Sheets (Parentheticals) Process Flow-Through: 00300 - Statement - Consolidated Statements of Income/(Loss) Process Flow-Through: 00500 - Statement - Consolidated Statements of Cash Flows ship-20121231.xml ship-20121231.xsd ship-20121231_cal.xml ship-20121231_def.xml ship-20121231_lab.xml ship-20121231_pre.xml true true