<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Version>2.4.0.8</Version>
  <ProcessingTime />
  <ReportFormat>Html</ReportFormat>
  <ContextCount>100</ContextCount>
  <ElementCount>209</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>48</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/StatementConsolidatedStatementsOfOperations</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00300 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/StatementConsolidatedStatementsOfComprehensiveIncome</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>10101 - Disclosure - 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure1CompanyAndSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>10201 - Disclosure - 2. NET LOSS PER COMMON SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure2NetLossPerCommonShare</Role>
      <ShortName>2. NET LOSS PER COMMON SHARE</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10301 - Disclosure - 3. BALANCE SHEET DETAIL</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetail</Role>
      <ShortName>3. BALANCE SHEET DETAIL</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10401 - Disclosure - 4. INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure4IncomeTaxes</Role>
      <ShortName>4. INCOME TAXES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10501 - Disclosure - 5. FINANCIAL INSTRUMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure5FinancialInstruments</Role>
      <ShortName>5. FINANCIAL INSTRUMENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10601 - Disclosure - 6. COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure6CommitmentsAndContingencies</Role>
      <ShortName>6. COMMITMENTS AND CONTINGENCIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10701 - Disclosure - 7. STOCK- BASED COMPENSATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure7StockBasedCompensation</Role>
      <ShortName>7. STOCK- BASED COMPENSATION</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10801 - Disclosure - 8. SEGMENT AND GEOGRAPHIC INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure8SegmentAndGeographicInformation</Role>
      <ShortName>8. SEGMENT AND GEOGRAPHIC INFORMATION</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10901 - Disclosure - 9. MODIFIED DUTCH AUCTION TENDER OFFER</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure9ModifiedDutchAuctionTenderOffer</Role>
      <ShortName>9. MODIFIED DUTCH AUCTION TENDER OFFER</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>20102 - Disclosure - 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure1CompanyAndSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>30203 - Disclosure - 2. NET LOSS PER COMMON SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure2NetLossPerCommonShareTables</Role>
      <ShortName>2. NET LOSS PER COMMON SHARE (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>30303 - Disclosure - 3. BALANCE SHEET DETAIL (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailTables</Role>
      <ShortName>3. BALANCE SHEET DETAIL (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>30503 - Disclosure - 5. FINANCIAL INSTRUMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure5FinancialInstrumentsTables</Role>
      <ShortName>5. FINANCIAL INSTRUMENTS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>30703 - Disclosure - 7. STOCK- BASED COMPENSATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure7StockBasedCompensationTables</Role>
      <ShortName>7. STOCK- BASED COMPENSATION (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>30803 - Disclosure - 8. SEGMENT AND GEOGRAPHIC INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure8SegmentAndGeographicInformationTables</Role>
      <ShortName>8. SEGMENT AND GEOGRAPHIC INFORMATION (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>40201 - Disclosure - 2. NET LOSS PER COMMON SHARE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure2NetLossPerCommonShareDetails</Role>
      <ShortName>2. NET LOSS PER COMMON SHARE (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>40202 - Disclosure - 2. NET LOSS PER COMMON SHARE (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure2NetLossPerCommonShareDetails2</Role>
      <ShortName>2. NET LOSS PER COMMON SHARE (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>40301 - Disclosure - 3. BALANCE SHEET DETAIL (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailDetails</Role>
      <ShortName>3. BALANCE SHEET DETAIL (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>40302 - Disclosure - 3. BALANCE SHEET DETAIL (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailDetails2</Role>
      <ShortName>3. BALANCE SHEET DETAIL (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>40303 - Disclosure - 3. BALANCE SHEET DETAIL (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailDetails3</Role>
      <ShortName>3. BALANCE SHEET DETAIL (Details 3)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>40304 - Disclosure - 3.BALANCE SHEET DETAIL - Property, Plant and Equipment (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailPropertyPlantAndEquipmentDetails4</Role>
      <ShortName>3.BALANCE SHEET DETAIL - Property, Plant and Equipment (Details 4)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>40305 - Disclosure - 3. BALANCE SHEET DETAIL (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailDetails5</Role>
      <ShortName>3. BALANCE SHEET DETAIL (Details 5)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>40306 - Disclosure - 3. BALANCE SHEET DETAIL (Details 6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailDetails6</Role>
      <ShortName>3. BALANCE SHEET DETAIL (Details 6)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>40308 - Disclosure - 3. BALANCE SHEET DETAIL (Details 7)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure3BalanceSheetDetailDetails7</Role>
      <ShortName>3. BALANCE SHEET DETAIL (Details 7)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>40404 - Disclosure - 4. INCOME TAXES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure4IncomeTaxesDetails</Role>
      <ShortName>4. INCOME TAXES (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>40501 - Disclosure - 5. FINANCIAL INSTRUMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure5FinancialInstrumentsDetails</Role>
      <ShortName>5. FINANCIAL INSTRUMENTS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>40502 - Disclosure - 5. FINANCIAL INSTRUMENTS (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure5FinancialInstrumentsDetails2</Role>
      <ShortName>5. FINANCIAL INSTRUMENTS (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>40503 - Disclosure - 5. FINANCIAL INSTRUMENTS (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure5FinancialInstrumentsDetails3</Role>
      <ShortName>5. FINANCIAL INSTRUMENTS (Details 3)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>40602 - Disclosure - 6-COMMITMENTS AND CONTINGENCIES - Royalties and Product Warranties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure6CommitmentsAndContingenciesRoyaltiesAndProductWarrantiesDetails</Role>
      <ShortName>6-COMMITMENTS AND CONTINGENCIES - Royalties and Product Warranties (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>40603 - Disclosure - 6-COMMITMENTS AND CONTINGENCIES - Legal proceedings (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure6CommitmentsAndContingenciesLegalProceedingsDetails2</Role>
      <ShortName>6-COMMITMENTS AND CONTINGENCIES - Legal proceedings (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>40701 - Disclosure - 7. STOCK- BASED COMPENSATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure7StockBasedCompensationDetails</Role>
      <ShortName>7. STOCK- BASED COMPENSATION (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>40702 - Disclosure - 7. STOCK- BASED COMPENSATION (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure7StockBasedCompensationDetails2</Role>
      <ShortName>7. STOCK- BASED COMPENSATION (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>40703 - Disclosure - 7. STOCK- BASED COMPENSATION (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure7StockBasedCompensationDetails3</Role>
      <ShortName>7. STOCK- BASED COMPENSATION (Details 3)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>40704 - Disclosure - 7. STOCK- BASED COMPENSATION (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure7StockBasedCompensationDetails4</Role>
      <ShortName>7. STOCK- BASED COMPENSATION (Details 4)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>40801 - Disclosure - 8. SEGMENT AND GEOGRAPHIC INFORMATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure8SegmentAndGeographicInformationDetails</Role>
      <ShortName>8. SEGMENT AND GEOGRAPHIC INFORMATION (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>40901 - Disclosure - 9. MODIFIED DUTCH AUCTION TENDER OFFER (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gsitechnology.com/role/Disclosure9ModifiedDutchAuctionTenderOfferDetails</Role>
      <ShortName>9. MODIFIED DUTCH AUCTION TENDER OFFER (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Info">Element us-gaap_EffectiveIncomeTaxRateContinuingOperations had a mix of decimals attribute values: 3 4.</Log>
    <Log type="Info">'Monetary' elements on report '40304 - Disclosure - 3.BALANCE SHEET DETAIL - Property, Plant and Equipment (Details 4)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '40306 - Disclosure - 3. BALANCE SHEET DETAIL (Details 6)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '40502 - Disclosure - 5. FINANCIAL INSTRUMENTS (Details 2)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '40703 - Disclosure - 7. STOCK- BASED COMPENSATION (Details 3)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Process Flow-Through: 00100 - Statement - CONSOLIDATED BALANCE SHEETS</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Jun. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Mar. 31, 2013'</Log>
    <Log type="Info">Process Flow-Through: 00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</Log>
    <Log type="Info">Process Flow-Through: 00200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</Log>
    <Log type="Info">Process Flow-Through: 00300 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</Log>
    <Log type="Info">Process Flow-Through: 00500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</Log>
  </Logs>
  <InputFiles>
    <File>gsit-20140630.xml</File>
    <File>gsit-20140630.xsd</File>
    <File>gsit-20140630_cal.xml</File>
    <File>gsit-20140630_def.xml</File>
    <File>gsit-20140630_lab.xml</File>
    <File>gsit-20140630_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
