2.4.0.8 Html 82 194 1 false 31 0 false 6 false false R1.htm 001 - Document - Document and Entity Information Sheet http://www.colorstars.com/role/DocumentAndEntityInformation Document and Entity Information true false R2.htm 002 - Statement - AUDITED CONSOLIDATED BALANCE SHEETS Sheet http://www.colorstars.com/role/AuditedConsolidatedBalanceSheets AUDITED CONSOLIDATED BALANCE SHEETS false false R3.htm 003 - Statement - AUDITED CONSOLIDATED BALANCE SHEETS (Parentheticals) Sheet http://www.colorstars.com/role/AuditedConsolidatedBalanceSheetsParentheticals AUDITED CONSOLIDATED BALANCE SHEETS (Parentheticals) false false R4.htm 004 - Statement - AUDITED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS Sheet http://www.colorstars.com/role/AuditedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited AUDITED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS false false R5.htm 005 - Statement - AUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY Sheet http://www.colorstars.com/role/AuditedConsolidatedStatementsOfStockholdersDeficitEquity AUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY false false R6.htm 006 - Statement - AUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.colorstars.com/role/AuditedConsolidatedStatementsOfCashFlows AUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS false false R7.htm 007 - Disclosure - Nature of Business and Basis of Presentation Sheet http://www.colorstars.com/role/NatureOfBusinessAndBasisOfPresentation Nature of Business and Basis of Presentation false false R8.htm 008 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.colorstars.com/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies false false R9.htm 009 - Disclosure - Recently Adopted Accounting Pronouncements Sheet http://www.colorstars.com/role/RecentlyAdoptedAccountingPronouncements Recently Adopted Accounting Pronouncements false false R10.htm 010 - Disclosure - Concentration of Risk Sheet http://www.colorstars.com/role/ConcentrationOfRisk Concentration of Risk false false R11.htm 011 - Disclosure - Earnings per share Sheet http://www.colorstars.com/role/EarningsPerShare Earnings per share false false R12.htm 012 - Disclosure - Accumulated Other Comprehensive loss Sheet http://www.colorstars.com/role/AccumulatedOtherComprehensiveLoss Accumulated Other Comprehensive loss false false R13.htm 013 - Disclosure - Long term investment Sheet http://www.colorstars.com/role/LongTermInvestment Long term investment false false R14.htm 014 - Disclosure - Inventory Sheet http://www.colorstars.com/role/Inventory Inventory false false R15.htm 015 - Disclosure - Intangible Assets Sheet http://www.colorstars.com/role/IntangibleAssets Intangible Assets false false R16.htm 016 - Disclosure - Equipment Sheet http://www.colorstars.com/role/Equipment Equipment false false R17.htm 017 - Disclosure - Income taxes Sheet http://www.colorstars.com/role/IncomeTaxes Income taxes false false R18.htm 018 - Disclosure - Accrued expenses Sheet http://www.colorstars.com/role/AccruedExpenses Accrued expenses false false R19.htm 019 - Disclosure - Bank short term debt Sheet http://www.colorstars.com/role/BankShortTermDebt Bank short term debt false false R20.htm 020 - Disclosure - Geographic Information Sheet http://www.colorstars.com/role/GeographicInformation Geographic Information false false R21.htm 021 - Disclosure - Related Party Transactions Sheet http://www.colorstars.com/role/RelatedPartyTransactions Related Party Transactions false false R22.htm 022 - Disclosure - Commitments Sheet http://www.colorstars.com/role/Commitments Commitments false false R23.htm 023 - Disclosure - Subsequent Events Sheet http://www.colorstars.com/role/SubsequentEvents Subsequent Events false false R24.htm 024 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.colorstars.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) false false R25.htm 025 - Disclosure - Earnings per share (Tables) Sheet http://www.colorstars.com/role/EarningspershareTables Earnings per share (Tables) false false R26.htm 026 - Disclosure - Accumulated Other Comprehensive loss (Tables) Sheet http://www.colorstars.com/role/AccumulatedOtherComprehensivelossTables Accumulated Other Comprehensive loss (Tables) false false R27.htm 027 - Disclosure - Long term investment (Tables) Sheet http://www.colorstars.com/role/LongterminvestmentTables Long term investment (Tables) false false R28.htm 028 - Disclosure - Inventory (Tables) Sheet http://www.colorstars.com/role/InventoryTables Inventory (Tables) false false R29.htm 029 - Disclosure - Intangible Assets (Tables) Sheet http://www.colorstars.com/role/IntangibleAssetsTables Intangible Assets (Tables) false false R30.htm 030 - Disclosure - Equipment (Tables) Sheet http://www.colorstars.com/role/EquipmentTables Equipment (Tables) false false R31.htm 031 - Disclosure - Income taxes (Tables) Sheet http://www.colorstars.com/role/IncometaxesTables Income taxes (Tables) false false R32.htm 032 - Disclosure - Accrued expenses (Tables) Sheet http://www.colorstars.com/role/AccruedexpensesTables Accrued expenses (Tables) false false R33.htm 033 - Disclosure - Bank short term debt (Tables) Sheet http://www.colorstars.com/role/BankshorttermdebtTables Bank short term debt (Tables) false false R34.htm 034 - Disclosure - Geographic Information (Tables) Sheet http://www.colorstars.com/role/GeographicInformationTables Geographic Information (Tables) false false R35.htm 035 - Disclosure - Related Party Transactions (Tables) Sheet http://www.colorstars.com/role/RelatedPartyTransactionsTables Related Party Transactions (Tables) false false R36.htm 036 - Disclosure - Commitments (Tables) Sheet http://www.colorstars.com/role/CommitmentsTables Commitments (Tables) false false R37.htm 037 - Disclosure - Nature of Business and Basis of Presentation (Detail Textuals) Sheet http://www.colorstars.com/role/NatureOfBusinessAndBasisOfPresentationDetailTextuals Nature of Business and Basis of Presentation (Detail Textuals) false false R38.htm 038 - Disclosure - Summary of Significant Accounting Policies (Detail Textuals) Sheet http://www.colorstars.com/role/SummaryOfSignificantAccountingPoliciesDetailTextuals Summary of Significant Accounting Policies (Detail Textuals) false false R39.htm 039 - Disclosure - Concentration of Risk (Detail Textuals) Sheet http://www.colorstars.com/role/ConcentrationofRiskDetails Concentration of Risk (Detail Textuals) false false R40.htm 040 - Disclosure - Earnings per share - Computation of basic and diluted net income (loss) per share (Details) Sheet http://www.colorstars.com/role/EarningsPerShareComputationOfBasicAndDilutedNetIncomeLossPerShareDetails Earnings per share - Computation of basic and diluted net income (loss) per share (Details) false false R41.htm 041 - Disclosure - Accumulated Other Comprehensive loss (Details) Sheet http://www.colorstars.com/role/AccumulatedOtherComprehensivelossDetails Accumulated Other Comprehensive loss (Details) false false R42.htm 042 - Disclosure - Long term investment - Summary of long term investment (Details) Sheet http://www.colorstars.com/role/LongTermInvestmentSummaryOfLongTermInvestmentDetails Long term investment - Summary of long term investment (Details) false false R43.htm 043 - Disclosure - Long term investment - Summary of financial information of Anteya Technology Corp - Balance sheet(Details 1) Sheet http://www.colorstars.com/role/LongTermInvestmentSummaryOfFinancialInformationOfAnteyaTechnologyCorpBalanceSheetDetails1 Long term investment - Summary of financial information of Anteya Technology Corp - Balance sheet(Details 1) false false R44.htm 044 - Disclosure - Long term investment - Summary of financial information of Anteya Technology Corp - Statement of operation (Details 2) Sheet http://www.colorstars.com/role/LongTermInvestmentSummaryOfFinancialInformationOfAnteyaTechnologyCorpStatementOfOperationDetails2 Long term investment - Summary of financial information of Anteya Technology Corp - Statement of operation (Details 2) false false R45.htm 045 - Disclosure - Long term investment (Detail Textuals) Sheet http://www.colorstars.com/role/LongTermInvestmentDetailTextuals Long term investment (Detail Textuals) false false R46.htm 046 - Disclosure - Inventory - Inventories stated at the lower of cost or market value (Details) Sheet http://www.colorstars.com/role/InventoryInventoriesStatedAtTheLowerOfCostOrMarketValueDetails Inventory - Inventories stated at the lower of cost or market value (Details) false false R47.htm 047 - Disclosure - Intangible Assets - Summary of intangible assets (Details) Sheet http://www.colorstars.com/role/IntangibleAssetsSummaryOfIntangibleAssetsDetails Intangible Assets - Summary of intangible assets (Details) false false R48.htm 048 - Disclosure - Intangible Assets (Detail Textuals) Sheet http://www.colorstars.com/role/IntangibleAssetsDetailTextuals Intangible Assets (Detail Textuals) false false R49.htm 049 - Disclosure - Equipment - Summary of equipment and related accumulated depreciation (Details) Sheet http://www.colorstars.com/role/EquipmentSummaryOfEquipmentAndRelatedAccumulatedDepreciationDetails Equipment - Summary of equipment and related accumulated depreciation (Details) false false R50.htm 050 - Disclosure - Equipment (Detail Textuals) Sheet http://www.colorstars.com/role/EquipmentDetailTextuals Equipment (Detail Textuals) false false R51.htm 051 - Disclosure - Income taxes - Summary of income tax provision (Details) Sheet http://www.colorstars.com/role/IncomeTaxesSummaryOfIncomeTaxProvisionDetails Income taxes - Summary of income tax provision (Details) false false R52.htm 052 - Disclosure - Income taxes - Summary of tax effects of statutory federal income tax rate to income before income taxes (Details 1) Sheet http://www.colorstars.com/role/IncomeTaxesSummaryOfTaxEffectsOfStatutoryFederalIncomeTaxRateToIncomeBeforeIncomeTaxesDetails1 Income taxes - Summary of tax effects of statutory federal income tax rate to income before income taxes (Details 1) false false R53.htm 053 - Disclosure - Income taxes (Detail Textuals) Sheet http://www.colorstars.com/role/IncomeTaxesDetailTextuals Income taxes (Detail Textuals) false false R54.htm 054 - Disclosure - Accrued expenses - Summary of accrued expenses (Details) Sheet http://www.colorstars.com/role/AccruedExpensesSummaryOfAccruedExpensesDetails Accrued expenses - Summary of accrued expenses (Details) false false R55.htm 055 - Disclosure - Bank short term debt - Summary of bank short term debt (Details) Sheet http://www.colorstars.com/role/BankShortTermDebtSummaryOfBankShortTermDebtDetails Bank short term debt - Summary of bank short term debt (Details) false false R56.htm 056 - Disclosure - Bank short term debt (Detail Textuals) Sheet http://www.colorstars.com/role/BankShortTermDebtDetailTextuals Bank short term debt (Detail Textuals) false false R57.htm 057 - Disclosure - Geographic Information - Summary of geographic information (Details) Sheet http://www.colorstars.com/role/GeographicInformationSummaryOfGeographicInformationDetails Geographic Information - Summary of geographic information (Details) false false R58.htm 058 - Disclosure - Related Party Transactions - Summary of related party transactions (Details) Sheet http://www.colorstars.com/role/RelatedPartyTransactionsSummaryOfRelatedPartyTransactionsDetails Related Party Transactions - Summary of related party transactions (Details) false false R59.htm 059 - Disclosure - Related Party Transactions - Summary of liabilities recorded with respect to related party transactions (Details 1) Sheet http://www.colorstars.com/role/RelatedPartyTransactionsSummaryOfLiabilitiesRecordedWithRespectToRelatedPartyTransactionsDetails1 Related Party Transactions - Summary of liabilities recorded with respect to related party transactions (Details 1) false false R60.htm 060 - Disclosure - Related Party Transactions (Detail Textuals) Sheet http://www.colorstars.com/role/RelatedPartyTransactionsDetailTextuals Related Party Transactions (Detail Textuals) false false R61.htm 061 - Disclosure - Commitments - Summary of commitments (Details) Sheet http://www.colorstars.com/role/CommitmentsSummaryOfCommitmentsDetails Commitments - Summary of commitments (Details) false false R62.htm 062 - Disclosure - Commitments - Minimum future rental payments due under non cancelable operating leases (Details 1) Sheet http://www.colorstars.com/role/CommitmentsMinimumFutureRentalPaymentsDueUnderNonCancelableOperatingLeasesDetails1 Commitments - Minimum future rental payments due under non cancelable operating leases (Details 1) false false R63.htm 063 - Disclosure - Subsequent Events (Detail Textuals) Sheet http://www.colorstars.com/role/SubsequentEventsDetailTextuals Subsequent Events (Detail Textuals) false false All Reports Book All Reports Process Flow-Through: 002 - Statement - AUDITED CONSOLIDATED BALANCE SHEETS Process Flow-Through: Removing column 'Dec. 31, 2011' Process Flow-Through: 003 - Statement - AUDITED CONSOLIDATED BALANCE SHEETS (Parentheticals) Process Flow-Through: 004 - Statement - AUDITED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS Process Flow-Through: 006 - Statement - AUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS cstu-20131231.xml cstu-20131231.xsd cstu-20131231_cal.xml cstu-20131231_def.xml cstu-20131231_lab.xml cstu-20131231_pre.xml true true