2.4.0.8 Html 263 352 1 false 80 0 false 17 false false R1.htm 0000 - Document - Document and Entity Information Sheet http://www.cubicenergyinc.com/role/DocumentAndEntityInformation Document and Entity Information true false R2.htm 0010 - Statement - BALANCE SHEETS Sheet http://www.cubicenergyinc.com/role/BalanceSheet BALANCE SHEETS false false R3.htm 0015 - Statement - BALANCE SHEETS (Parenthetical) Sheet http://www.cubicenergyinc.com/role/BalanceSheetParenthetical BALANCE SHEETS (Parenthetical) false false R4.htm 0020 - Statement - STATEMENTS OF OPERATIONS Sheet http://www.cubicenergyinc.com/role/StatementOfIncome STATEMENTS OF OPERATIONS false false R5.htm 0030 - Statement - STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY Sheet http://www.cubicenergyinc.com/role/StatementOfStockholdersEquity STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY false false R6.htm 0040 - Statement - STATEMENTS OF CASH FLOWS Sheet http://www.cubicenergyinc.com/role/CashFlows STATEMENTS OF CASH FLOWS false false R7.htm 1010 - Disclosure - Background and general: Sheet http://www.cubicenergyinc.com/role/DisclosureBackgroundAndGeneral Background and general: false false R8.htm 1020 - Disclosure - Significant accounting policies: Sheet http://www.cubicenergyinc.com/role/DisclosureSignificantAccountingPolicies Significant accounting policies: false false R9.htm 1030 - Disclosure - Stockholders' equity: Sheet http://www.cubicenergyinc.com/role/DisclosureStockholdersEquity Stockholders' equity: false false R10.htm 1040 - Disclosure - Loss per common share: Sheet http://www.cubicenergyinc.com/role/DisclosureLossPerCommonShare Loss per common share: false false R11.htm 1050 - Disclosure - Long-term debt: Sheet http://www.cubicenergyinc.com/role/DisclosureLongTermDebt Long-term debt: false false R12.htm 1060 - Disclosure - Related party transactions: Sheet http://www.cubicenergyinc.com/role/DisclosureRelatedPartyTransactions Related party transactions: false false R13.htm 1070 - Disclosure - Income taxes: Sheet http://www.cubicenergyinc.com/role/DisclosureIncomeTaxes Income taxes: false false R14.htm 1080 - Disclosure - Commitments and contingencies: Sheet http://www.cubicenergyinc.com/role/DisclosureCommitmentsAndContingencies Commitments and contingencies: false false R15.htm 1090 - Disclosure - Cost of oil and gas properties: Sheet http://www.cubicenergyinc.com/role/DisclosureCostOfOilAndGasProperties Cost of oil and gas properties: false false R16.htm 1100 - Disclosure - Oil and gas reserves information: Sheet http://www.cubicenergyinc.com/role/DisclosureOilAndGasReservesInformation Oil and gas reserves information: false false R17.htm 1110 - Disclosure - Selected quarterly financial data (unaudited): Sheet http://www.cubicenergyinc.com/role/DisclosureSelectedQuarterlyFinancialData Selected quarterly financial data (unaudited): false false R18.htm 1120 - Disclosure - Subsequent Events: Sheet http://www.cubicenergyinc.com/role/DisclosureSubsequentEvents Subsequent Events: false false R19.htm 1130 - Disclosure - Liquidity: Sheet http://www.cubicenergyinc.com/role/DisclosureLiquidity Liquidity: false false R20.htm 2020 - Disclosure - Significant accounting policies: (Policies) Sheet http://www.cubicenergyinc.com/role/DisclosureSignificantAccountingPoliciesPolicies Significant accounting policies: (Policies) false false R21.htm 3030 - Disclosure - Stockholders' equity: (Tables) Sheet http://www.cubicenergyinc.com/role/DisclosureStockholdersEquityTables Stockholders' equity: (Tables) false false R22.htm 3040 - Disclosure - Loss per common share: (Tables) Sheet http://www.cubicenergyinc.com/role/DisclosureLossPerCommonShareTables Loss per common share: (Tables) false false R23.htm 3050 - Disclosure - Long-term debt: (Tables) Sheet http://www.cubicenergyinc.com/role/DisclosureLongTermDebtTables Long-term debt: (Tables) false false R24.htm 3070 - Disclosure - Income taxes: (Tables) Sheet http://www.cubicenergyinc.com/role/DisclosureIncomeTaxesTables Income taxes: (Tables) false false R25.htm 3090 - Disclosure - Cost of oil and gas properties: (Tables) Sheet http://www.cubicenergyinc.com/role/DisclosureCostOfOilAndGasPropertiesTables Cost of oil and gas properties: (Tables) false false R26.htm 3100 - Disclosure - Oil and gas reserves information: (Tables) Sheet http://www.cubicenergyinc.com/role/DisclosureOilAndGasReservesInformationTables Oil and gas reserves information: (Tables) false false R27.htm 3110 - Disclosure - Selected quarterly financial data (unaudited): (Tables) Sheet http://www.cubicenergyinc.com/role/DisclosureSelectedQuarterlyFinancialDataTables Selected quarterly financial data (unaudited): (Tables) false false R28.htm 4020 - Disclosure - Significant accounting policies: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureSignificantAccountingPoliciesDetails Significant accounting policies: (Details) false false R29.htm 4021 - Disclosure - Significant accounting policies: (Details 2) Sheet http://www.cubicenergyinc.com/role/DisclosureSignificantAccountingPoliciesDetails2 Significant accounting policies: (Details 2) false false R30.htm 4022 - Disclosure - Significant accounting policies: (Details 3) Sheet http://www.cubicenergyinc.com/role/DisclosureSignificantAccountingPoliciesDetails3 Significant accounting policies: (Details 3) false false R31.htm 4030 - Disclosure - Stockholders' equity: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureStockholdersEquityDetails Stockholders' equity: (Details) false false R32.htm 4031 - Disclosure - Stockholders' equity: (Details 2) Sheet http://www.cubicenergyinc.com/role/DisclosureStockholdersEquityDetails2 Stockholders' equity: (Details 2) false false R33.htm 4032 - Disclosure - Stockholders' equity: (Details 3) Sheet http://www.cubicenergyinc.com/role/DisclosureStockholdersEquityDetails3 Stockholders' equity: (Details 3) false false R34.htm 4033 - Disclosure - Stockholders' equity: (Details 4) Sheet http://www.cubicenergyinc.com/role/DisclosureStockholdersEquityDetails4 Stockholders' equity: (Details 4) false false R35.htm 4040 - Disclosure - Loss per common share: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureLossPerCommonShareDetails Loss per common share: (Details) false false R36.htm 4050 - Disclosure - Long-term debt: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureLongTermDebtDetails Long-term debt: (Details) false false R37.htm 4060 - Disclosure - Related party transactions: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureRelatedPartyTransactionsDetails Related party transactions: (Details) false false R38.htm 4070 - Disclosure - Income taxes: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureIncomeTaxesDetails Income taxes: (Details) false false R39.htm 4080 - Disclosure - Commitments and contingencies: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureCommitmentsAndContingenciesDetails Commitments and contingencies: (Details) false false R40.htm 4081 - Disclosure - Commitments and contingencies: (Details 2) Sheet http://www.cubicenergyinc.com/role/DisclosureCommitmentsAndContingenciesDetails2 Commitments and contingencies: (Details 2) false false R41.htm 4090 - Disclosure - Cost of oil and gas properties: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureCostOfOilAndGasPropertiesDetails Cost of oil and gas properties: (Details) false false R42.htm 4100 - Disclosure - Oil and gas reserves information: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureOilAndGasReservesInformationDetails Oil and gas reserves information: (Details) false false R43.htm 4101 - Disclosure - Oil and gas reserves information: (Details 2) Sheet http://www.cubicenergyinc.com/role/DisclosureOilAndGasReservesInformationDetails2 Oil and gas reserves information: (Details 2) false false R44.htm 4110 - Disclosure - Selected quarterly financial data (unaudited): (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureSelectedQuarterlyFinancialDataDetails Selected quarterly financial data (unaudited): (Details) false false R45.htm 4120 - Disclosure - Subsequent Events: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureSubsequentEventsDetails Subsequent Events: (Details) false false R46.htm 4130 - Disclosure - Liquidity: (Details) Sheet http://www.cubicenergyinc.com/role/DisclosureLiquidityDetails Liquidity: (Details) false false All Reports Book All Reports Element us-gaap_OtherLongTermInvestments had a mix of decimals attribute values: -6 0. Element us-gaap_SharePrice had a mix of decimals attribute values: 2 3. Element us-gaap_StockIssuedDuringPeriodSharesNewIssues had a mix of decimals attribute values: 0 3. Element us-gaap_UnderlyingDerivativeEnergyMeasure had a mix of decimals attribute values: 0 2. Process Flow-Through: 0010 - Statement - BALANCE SHEETS Process Flow-Through: Removing column 'Jun. 30, 2011' Process Flow-Through: Removing column 'Jun. 30, 2010' Process Flow-Through: 0015 - Statement - BALANCE SHEETS (Parenthetical) Process Flow-Through: 0020 - Statement - STATEMENTS OF OPERATIONS Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2013' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2013' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2012' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2012' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2011' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2011' Process Flow-Through: 0040 - Statement - STATEMENTS OF CASH FLOWS qbc-20130630.xml qbc-20130630.xsd qbc-20130630_cal.xml qbc-20130630_def.xml qbc-20130630_lab.xml qbc-20130630_pre.xml true true