2.4.0.8 Html 213 325 1 false 59 0 false 5 false false R1.htm 0000 - Document - Document and Entity Information Sheet http://www.rosettastone.com/role/DocumentAndEntityInformation Document and Entity Information true false R2.htm 0010 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://www.rosettastone.com/role/BalanceSheet CONSOLIDATED BALANCE SHEETS false false R3.htm 0015 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://www.rosettastone.com/role/BalanceSheetParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) false false R4.htm 0020 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS Sheet http://www.rosettastone.com/role/StatementOfIncome CONSOLIDATED STATEMENTS OF OPERATIONS false false R5.htm 0030 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Sheet http://www.rosettastone.com/role/StatementOfComprehensiveIncomeLoss CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS false false R6.htm 0040 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.rosettastone.com/role/CashFlows CONSOLIDATED STATEMENTS OF CASH FLOWS false false R7.htm 1010 - Disclosure - NATURE OF OPERATIONS Sheet http://www.rosettastone.com/role/DisclosureNatureOfOperations NATURE OF OPERATIONS false false R8.htm 1020 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPolicies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES false false R9.htm 1030 - Disclosure - BUSINESS COMBINATIONS Sheet http://www.rosettastone.com/role/DisclosureBusinessCombinations BUSINESS COMBINATIONS false false R10.htm 1040 - Disclosure - NET LOSS PER SHARE Sheet http://www.rosettastone.com/role/DisclosureNetLossPerShare NET LOSS PER SHARE false false R11.htm 1050 - Disclosure - INVENTORY Sheet http://www.rosettastone.com/role/DisclosureInventory INVENTORY false false R12.htm 1060 - Disclosure - GOODWILL Sheet http://www.rosettastone.com/role/DisclosureGoodwill GOODWILL false false R13.htm 1070 - Disclosure - INTANGIBLE ASSETS Sheet http://www.rosettastone.com/role/DisclosureIntangibleAssets INTANGIBLE ASSETS false false R14.htm 1080 - Disclosure - OTHER CURRENT LIABILITIES Sheet http://www.rosettastone.com/role/DisclosureOtherCurrentLiabilities OTHER CURRENT LIABILITIES false false R15.htm 1090 - Disclosure - INCOME TAXES Sheet http://www.rosettastone.com/role/DisclosureIncomeTaxes INCOME TAXES false false R16.htm 1100 - Disclosure - STOCK PLANS Sheet http://www.rosettastone.com/role/DisclosureStockPlans STOCK PLANS false false R17.htm 1110 - Disclosure - STOCKHOLDERS' EQUITY Sheet http://www.rosettastone.com/role/DisclosureStockholdersEquity STOCKHOLDERS' EQUITY false false R18.htm 1120 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://www.rosettastone.com/role/DisclosureCommitmentsAndContingencies COMMITMENTS AND CONTINGENCIES false false R19.htm 1130 - Disclosure - SEGMENT INFORMATION Sheet http://www.rosettastone.com/role/DisclosureSegmentInformation SEGMENT INFORMATION false false R20.htm 2020 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) false false R21.htm 3020 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) false false R22.htm 3030 - Disclosure - BUSINESS COMBINATIONS (Tables) Sheet http://www.rosettastone.com/role/DisclosureBusinessCombinationsTables BUSINESS COMBINATIONS (Tables) false false R23.htm 3040 - Disclosure - NET LOSS PER SHARE (Tables) Sheet http://www.rosettastone.com/role/DisclosureNetLossPerShareTables NET LOSS PER SHARE (Tables) false false R24.htm 3050 - Disclosure - INVENTORY (Tables) Sheet http://www.rosettastone.com/role/DisclosureInventoryTables INVENTORY (Tables) false false R25.htm 3060 - Disclosure - GOODWILL (Tables) Sheet http://www.rosettastone.com/role/DisclosureGoodwillTables GOODWILL (Tables) false false R26.htm 3070 - Disclosure - INTANGIBLE ASSETS (Tables) Sheet http://www.rosettastone.com/role/DisclosureIntangibleAssetsTables INTANGIBLE ASSETS (Tables) false false R27.htm 3080 - Disclosure - OTHER CURRENT LIABILITIES (Tables) Sheet http://www.rosettastone.com/role/DisclosureOtherCurrentLiabilitiesTables OTHER CURRENT LIABILITIES (Tables) false false R28.htm 3100 - Disclosure - STOCK PLANS (Tables) Sheet http://www.rosettastone.com/role/DisclosureStockPlansTables STOCK PLANS (Tables) false false R29.htm 3120 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) Sheet http://www.rosettastone.com/role/DisclosureCommitmentsAndContingenciesTables COMMITMENTS AND CONTINGENCIES (Tables) false false R30.htm 3130 - Disclosure - SEGMENT INFORMATION (Tables) Sheet http://www.rosettastone.com/role/DisclosureSegmentInformationTables SEGMENT INFORMATION (Tables) false false R31.htm 4020 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) false false R32.htm 4021 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails2 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) false false R33.htm 4022 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails3 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) false false R34.htm 4023 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails4 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) false false R35.htm 4024 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 5) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails5 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 5) false false R36.htm 4025 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 6) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails6 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 6) false false R37.htm 4026 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 7) Sheet http://www.rosettastone.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails7 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 7) false false R38.htm 4030 - Disclosure - BUSINESS COMBINATIONS (Details) Sheet http://www.rosettastone.com/role/DisclosureBusinessCombinationsDetails BUSINESS COMBINATIONS (Details) false false R39.htm 4040 - Disclosure - NET LOSS PER SHARE (Details) Sheet http://www.rosettastone.com/role/DisclosureNetLossPerShareDetails NET LOSS PER SHARE (Details) false false R40.htm 4041 - Disclosure - NET LOSS PER SHARE (Details 2) Sheet http://www.rosettastone.com/role/DisclosureNetLossPerShareDetails2 NET LOSS PER SHARE (Details 2) false false R41.htm 4050 - Disclosure - INVENTORY (Details) Sheet http://www.rosettastone.com/role/DisclosureInventoryDetails INVENTORY (Details) false false R42.htm 4060 - Disclosure - GOODWILL (Details) Sheet http://www.rosettastone.com/role/DisclosureGoodwillDetails GOODWILL (Details) false false R43.htm 4070 - Disclosure - INTANGIBLE ASSETS (Details) Sheet http://www.rosettastone.com/role/DisclosureIntangibleAssetsDetails INTANGIBLE ASSETS (Details) false false R44.htm 4080 - Disclosure - OTHER CURRENT LIABILITIES (Details) Sheet http://www.rosettastone.com/role/DisclosureOtherCurrentLiabilitiesDetails OTHER CURRENT LIABILITIES (Details) false false R45.htm 4090 - Disclosure - INCOME TAXES (Details) Sheet http://www.rosettastone.com/role/DisclosureIncomeTaxesDetails INCOME TAXES (Details) false false R46.htm 4100 - Disclosure - STOCK PLANS (Details) Sheet http://www.rosettastone.com/role/DisclosureStockPlansDetails STOCK PLANS (Details) false false R47.htm 4101 - Disclosure - STOCK PLANS (Details 2) Sheet http://www.rosettastone.com/role/DisclosureStockPlansDetails2 STOCK PLANS (Details 2) false false R48.htm 4110 - Disclosure - STOCKHOLDERS' EQUITY (Details) Sheet http://www.rosettastone.com/role/DisclosureStockholdersEquityDetails STOCKHOLDERS' EQUITY (Details) false false R49.htm 4120 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) Sheet http://www.rosettastone.com/role/DisclosureCommitmentsAndContingenciesDetails COMMITMENTS AND CONTINGENCIES (Details) false false R50.htm 4121 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details 2) Sheet http://www.rosettastone.com/role/DisclosureCommitmentsAndContingenciesDetails2 COMMITMENTS AND CONTINGENCIES (Details 2) false false R51.htm 4122 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details 3) Sheet http://www.rosettastone.com/role/DisclosureCommitmentsAndContingenciesDetails3 COMMITMENTS AND CONTINGENCIES (Details 3) false false R52.htm 4130 - Disclosure - SEGMENT INFORMATION (Details) Sheet http://www.rosettastone.com/role/DisclosureSegmentInformationDetails SEGMENT INFORMATION (Details) false false R53.htm 4131 - Disclosure - SEGMENT INFORMATION (Details 2) Sheet http://www.rosettastone.com/role/DisclosureSegmentInformationDetails2 SEGMENT INFORMATION (Details 2) false false All Reports Book All Reports Element us-gaap_CommonStockSharesIssued had a mix of decimals attribute values: -3 0. Element us-gaap_CommonStockSharesOutstanding had a mix of decimals attribute values: -3 0. 'Shares' elements on report '0015 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)' had a mix of different decimal attribute values. 'Monetary' elements on report '4026 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 7)' had a mix of different decimal attribute values. 'Monetary' elements on report '4070 - Disclosure - INTANGIBLE ASSETS (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '4101 - Disclosure - STOCK PLANS (Details 2)' had a mix of different decimal attribute values. 'Monetary' elements on report '4120 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '4121 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details 2)' had a mix of different decimal attribute values. Process Flow-Through: 0010 - Statement - CONSOLIDATED BALANCE SHEETS Process Flow-Through: Removing column 'Sep. 30, 2012' Process Flow-Through: Removing column 'Jan. 02, 2012' Process Flow-Through: Removing column 'Dec. 31, 2011' Process Flow-Through: 0015 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Process Flow-Through: 0020 - Statement - CONSOLIDATED 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 Jun. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2012' Process Flow-Through: Removing column '6 Months Ended Jun. 30, 2013' Process Flow-Through: Removing column '6 Months Ended Jun. 30, 2012' Process Flow-Through: 0030 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS 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 Jun. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2012' Process Flow-Through: Removing column '6 Months Ended Jun. 30, 2013' Process Flow-Through: Removing column '6 Months Ended Jun. 30, 2012' Process Flow-Through: 0040 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS rst-20130930.xml rst-20130930.xsd rst-20130930_cal.xml rst-20130930_def.xml rst-20130930_lab.xml rst-20130930_pre.xml true true