3.6.0.2 html 104 236 1 false 35 0 false 4 false false R1.htm 101 - Document - Document And Entity Information Sheet http://www.biostage.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 102 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://www.biostage.com/role/ConsolidatedBalanceSheets CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 103 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://www.biostage.com/role/ConsolidatedBalanceSheetsParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 104 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS Sheet http://www.biostage.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveLoss CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS Statements 4 false false R5.htm 105 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parenthetical) Sheet http://www.biostage.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveLossParenthetical CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parenthetical) Statements 5 false false R6.htm 106 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Sheet http://www.biostage.com/role/ConsolidatedStatementsOfStockholdersEquity CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Statements 6 false false R7.htm 107 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.biostage.com/role/ConsolidatedStatementsOfCashFlows CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 108 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) Sheet http://www.biostage.com/role/ConsolidatedStatementsOfCashFlowsParenthetical CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) Statements 8 false false R9.htm 109 - Disclosure - Organization Sheet http://www.biostage.com/role/Organization Organization Notes 9 false false R10.htm 110 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.biostage.com/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 10 false false R11.htm 111 - Disclosure - Concentration of Credit Risk Sheet http://www.biostage.com/role/ConcentrationOfCreditRisk Concentration of Credit Risk Notes 11 false false R12.htm 112 - Disclosure - Liquidity Sheet http://www.biostage.com/role/Liquidity Liquidity Notes 12 false false R13.htm 113 - Disclosure - Fair Value Measurements Sheet http://www.biostage.com/role/FairValueMeasurements Fair Value Measurements Notes 13 false false R14.htm 114 - Disclosure - Related Party Transactions Sheet http://www.biostage.com/role/RelatedPartyTransactions Related Party Transactions Notes 14 false false R15.htm 115 - Disclosure - Property, Plant and Equipment, Net Sheet http://www.biostage.com/role/PropertyPlantAndEquipmentNet Property, Plant and Equipment, Net Notes 15 false false R16.htm 116 - Disclosure - Commitments and Contingent Liabilities Sheet http://www.biostage.com/role/CommitmentsAndContingentLiabilities Commitments and Contingent Liabilities Notes 16 false false R17.htm 117 - Disclosure - Income Taxes Sheet http://www.biostage.com/role/IncomeTaxes Income Taxes Notes 17 false false R18.htm 118 - Disclosure - Employee Benefit Plans Sheet http://www.biostage.com/role/EmployeeBenefitPlans Employee Benefit Plans Notes 18 false false R19.htm 119 - Disclosure - Capital Stock Sheet http://www.biostage.com/role/CapitalStock Capital Stock Notes 19 false false R20.htm 120 - Disclosure - Share-Based Compensation Sheet http://www.biostage.com/role/SharebasedCompensation Share-Based Compensation Notes 20 false false R21.htm 121 - Disclosure - Quarterly Financial Information (Unaudited) Sheet http://www.biostage.com/role/QuarterlyFinancialInformationUnaudited Quarterly Financial Information (Unaudited) Notes 21 false false R22.htm 122 - Disclosure - Subsequent events Sheet http://www.biostage.com/role/SubsequentEvents Subsequent events Notes 22 false false R23.htm 123 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.biostage.com/role/SummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.biostage.com/role/SummaryOfSignificantAccountingPolicies 23 false false R24.htm 124 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.biostage.com/role/SummaryOfSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://www.biostage.com/role/SummaryOfSignificantAccountingPolicies 24 false false R25.htm 125 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.biostage.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.biostage.com/role/FairValueMeasurements 25 false false R26.htm 126 - Disclosure - Property, Plant and Equipment, Net (Tables) Sheet http://www.biostage.com/role/PropertyPlantAndEquipmentNetTables Property, Plant and Equipment, Net (Tables) Tables http://www.biostage.com/role/PropertyPlantAndEquipmentNet 26 false false R27.htm 127 - Disclosure - Income Taxes (Tables) Sheet http://www.biostage.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://www.biostage.com/role/IncomeTaxes 27 false false R28.htm 128 - Disclosure - Share-Based Compensation (Tables) Sheet http://www.biostage.com/role/SharebasedCompensationTables Share-Based Compensation (Tables) Tables http://www.biostage.com/role/SharebasedCompensation 28 false false R29.htm 129 - Disclosure - Quarterly Financial Information (Unaudited) (Tables) Sheet http://www.biostage.com/role/QuarterlyFinancialInformationUnauditedTables Quarterly Financial Information (Unaudited) (Tables) Tables http://www.biostage.com/role/QuarterlyFinancialInformationUnaudited 29 false false R30.htm 130 - Disclosure - Summary of Significant Accounting Policies (Details) Sheet http://www.biostage.com/role/SummaryOfSignificantAccountingPoliciesDetails Summary of Significant Accounting Policies (Details) Details http://www.biostage.com/role/SummaryOfSignificantAccountingPoliciesTables 30 false false R31.htm 131 - Disclosure - Summary of Significant Accounting Policies (Details Textual) Sheet http://www.biostage.com/role/SummaryOfSignificantAccountingPoliciesDetailsTextual Summary of Significant Accounting Policies (Details Textual) Details http://www.biostage.com/role/SummaryOfSignificantAccountingPoliciesTables 31 false false R32.htm 132 - Disclosure - Concentration of Credit Risk (Details Textual) Sheet http://www.biostage.com/role/ConcentrationOfCreditRiskDetailsTextual Concentration of Credit Risk (Details Textual) Details http://www.biostage.com/role/ConcentrationOfCreditRisk 32 false false R33.htm 133 - Disclosure - Liquidity (Details Textual) Sheet http://www.biostage.com/role/LiquidityDetailsTextual Liquidity (Details Textual) Details http://www.biostage.com/role/Liquidity 33 false false R34.htm 134 - Disclosure - Fair Value Measurements (Details) Sheet http://www.biostage.com/role/FairValueMeasurementsDetails Fair Value Measurements (Details) Details http://www.biostage.com/role/FairValueMeasurementsTables 34 false false R35.htm 135 - Disclosure - Fair Value Measurements (Details 1) Sheet http://www.biostage.com/role/FairValueMeasurementsDetails1 Fair Value Measurements (Details 1) Details http://www.biostage.com/role/FairValueMeasurementsTables 35 false false R36.htm 136 - Disclosure - Fair Value Measurements (Details 2) Sheet http://www.biostage.com/role/FairValueMeasurementsDetails2 Fair Value Measurements (Details 2) Details http://www.biostage.com/role/FairValueMeasurementsTables 36 false false R37.htm 137 - Disclosure - Fair Value Measurements (Details Textual) Sheet http://www.biostage.com/role/FairValueMeasurementsDetailsTextual Fair Value Measurements (Details Textual) Details http://www.biostage.com/role/FairValueMeasurementsTables 37 false false R38.htm 138 - Disclosure - Related Party Transactions (Details Textual) Sheet http://www.biostage.com/role/RelatedPartyTransactionsDetailsTextual Related Party Transactions (Details Textual) Details http://www.biostage.com/role/RelatedPartyTransactions 38 false false R39.htm 139 - Disclosure - Property, Plant and Equipment, Net (Details) Sheet http://www.biostage.com/role/PropertyPlantAndEquipmentNetDetails Property, Plant and Equipment, Net (Details) Details http://www.biostage.com/role/PropertyPlantAndEquipmentNetTables 39 false false R40.htm 140 - Disclosure - Commitments and Contingent Liabilities (Details Textual) Sheet http://www.biostage.com/role/CommitmentsAndContingentLiabilitiesDetailsTextual Commitments and Contingent Liabilities (Details Textual) Details http://www.biostage.com/role/CommitmentsAndContingentLiabilities 40 false false R41.htm 141 - Disclosure - Income Taxes (Details) Sheet http://www.biostage.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.biostage.com/role/IncomeTaxesTables 41 false false R42.htm 142 - Disclosure - Income Taxes (Details 1) Sheet http://www.biostage.com/role/IncomeTaxesDetails1 Income Taxes (Details 1) Details http://www.biostage.com/role/IncomeTaxesTables 42 false false R43.htm 143 - Disclosure - Income Taxes (Details 2) Sheet http://www.biostage.com/role/IncomeTaxesDetails2 Income Taxes (Details 2) Details http://www.biostage.com/role/IncomeTaxesTables 43 false false R44.htm 144 - Disclosure - Income Taxes (Details Textual) Sheet http://www.biostage.com/role/IncomeTaxesDetailsTextual Income Taxes (Details Textual) Details http://www.biostage.com/role/IncomeTaxesTables 44 false false R45.htm 145 - Disclosure - Employee Benefit Plans (Details Textual) Sheet http://www.biostage.com/role/EmployeeBenefitPlansDetailsTextual Employee Benefit Plans (Details Textual) Details http://www.biostage.com/role/EmployeeBenefitPlans 45 false false R46.htm 146 - Disclosure - Capital Stock (Details Textual) Sheet http://www.biostage.com/role/CapitalStockDetailsTextual Capital Stock (Details Textual) Details http://www.biostage.com/role/CapitalStock 46 false false R47.htm 147 - Disclosure - Share-Based Compensation (Details) Sheet http://www.biostage.com/role/SharebasedCompensationDetails Share-Based Compensation (Details) Details http://www.biostage.com/role/SharebasedCompensationTables 47 false false R48.htm 148 - Disclosure - Share-Based Compensation (Details 1) Sheet http://www.biostage.com/role/SharebasedCompensationDetails1 Share-Based Compensation (Details 1) Details http://www.biostage.com/role/SharebasedCompensationTables 48 false false R49.htm 149 - Disclosure - Share-Based Compensation (Details 2) Sheet http://www.biostage.com/role/SharebasedCompensationDetails2 Share-Based Compensation (Details 2) Details http://www.biostage.com/role/SharebasedCompensationTables 49 false false R50.htm 150 - Disclosure - Share-Based Compensation (Details 3) Sheet http://www.biostage.com/role/SharebasedCompensationDetails3 Share-Based Compensation (Details 3) Details http://www.biostage.com/role/SharebasedCompensationTables 50 false false R51.htm 151 - Disclosure - Share-Based Compensation (Details Textual) Sheet http://www.biostage.com/role/SharebasedCompensationDetailsTextual Share-Based Compensation (Details Textual) Details http://www.biostage.com/role/SharebasedCompensationTables 51 false false R52.htm 152 - Disclosure - Quarterly Financial Information (Unaudited) (Details) Sheet http://www.biostage.com/role/QuarterlyFinancialInformationUnauditedDetails Quarterly Financial Information (Unaudited) (Details) Details http://www.biostage.com/role/QuarterlyFinancialInformationUnauditedTables 52 false false R53.htm 153 - Disclosure - Subsequent events (Details Textual) Sheet http://www.biostage.com/role/SubsequentEventsDetailsTextual Subsequent events (Details Textual) Details http://www.biostage.com/role/SubsequentEvents 53 false false All Reports Book All Reports bstg-20161231.xml bstg-20161231.xsd bstg-20161231_cal.xml bstg-20161231_def.xml bstg-20161231_lab.xml bstg-20161231_pre.xml true true