<?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>83</ContextCount>
  <ElementCount>203</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>39</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Disclosure - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Condensed Consolidated Balance Sheets (Current period unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Current period unaudited)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Condensed Consolidated Balance Sheets (Current period unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Current period unaudited) (Parentheticals)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Condensed Consolidated Statements of Operations (Unaudited)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Condensed Consolidated Statements of Cash Flow (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flow (Unaudited)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Disclosure - Note 1 - Background and Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note1BackgroundandBasisofPresentation</Role>
      <ShortName>Note 1 - Background and Basis of Presentation</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Disclosure - Note 2 - Income Per Share Data</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note2IncomePerShareData</Role>
      <ShortName>Note 2 - Income Per Share Data</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note3AssetsRelatedto2010ExpeditiontoTitanicWreckSite</Role>
      <ShortName>Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Note 4 - Notes Payable, Royalty Payable, and Capital Lease Obligations</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.prxi.com/role/Note4NotesPayableRoyaltyPayableandCapitalLeaseObligations</Role>
      <ShortName>Note 4 - Notes Payable, Royalty Payable, and Capital Lease Obligations</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Note 5 - Legal Proceedings and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note5LegalProceedingsandContingencies</Role>
      <ShortName>Note 5 - Legal Proceedings and Contingencies</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Note 6 - Purchase and Registration Rights Agreements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note6PurchaseandRegistrationRightsAgreements</Role>
      <ShortName>Note 6 - Purchase and Registration Rights Agreements</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Note 7 - Segment Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note7SegmentInformation</Role>
      <ShortName>Note 7 - Segment Information</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Note 8 - Consignment Agreement and RMS Titanic Sale</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note8ConsignmentAgreementandRMSTitanicSale</Role>
      <ShortName>Note 8 - Consignment Agreement and RMS Titanic Sale</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Note 9 - Commitment and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note9CommitmentandContingencies</Role>
      <ShortName>Note 9 - Commitment and Contingencies</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Note 10 - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note10SubsequentEvents</Role>
      <ShortName>Note 10 - Subsequent Events</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Note 2 - Income Per Share Data (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note2IncomePerShareDataTables</Role>
      <ShortName>Note 2 - Income Per Share Data (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note3AssetsRelatedto2010ExpeditiontoTitanicWreckSiteTables</Role>
      <ShortName>Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Note 7 - Segment Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note7SegmentInformationTables</Role>
      <ShortName>Note 7 - Segment Information (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Note 1 - Background and Basis of Presentation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note1BackgroundandBasisofPresentationDetails</Role>
      <ShortName>Note 1 - Background and Basis of Presentation (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Note 2 - Income Per Share Data (Details) - Computation of Basic and Diluted Net Income Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/ComputationofBasicandDilutedNetIncomePerShareTable</Role>
      <ShortName>Note 2 - Income Per Share Data (Details) - Computation of Basic and Diluted Net Income Per Share</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Note 2 - Income Per Share Data (Details) - Anti-Dilutive Securities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/AntiDilutiveSecuritiesTable</Role>
      <ShortName>Note 2 - Income Per Share Data (Details) - Anti-Dilutive Securities</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note3AssetsRelatedto2010ExpeditiontoTitanicWreckSiteDetails</Role>
      <ShortName>Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site (Details) - Assets Related to Two Thousand Ten Expedition to Titanic Wreck Site</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/AssetsRelatedtoTwoThousandTenExpeditiontoTitanicWreckSiteTable</Role>
      <ShortName>Note 3 - Assets Related to 2010 Expedition to Titanic Wreck Site (Details) - Assets Related to Two Thousand Ten Expedition to Titanic Wreck Site</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>024 - Disclosure - Note 4 - Notes Payable, Royalty Payable, and Capital Lease Obligations (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.prxi.com/role/Note4NotesPayableRoyaltyPayableandCapitalLeaseObligationsDetails</Role>
      <ShortName>Note 4 - Notes Payable, Royalty Payable, and Capital Lease Obligations (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>025 - Disclosure - Note 5 - Legal Proceedings and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note5LegalProceedingsandContingenciesDetails</Role>
      <ShortName>Note 5 - Legal Proceedings and Contingencies (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>026 - Disclosure - Note 6 - Purchase and Registration Rights Agreements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note6PurchaseandRegistrationRightsAgreementsDetails</Role>
      <ShortName>Note 6 - Purchase and Registration Rights Agreements (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>027 - Disclosure - Note 7 - Segment Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note7SegmentInformationDetails</Role>
      <ShortName>Note 7 - Segment Information (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>028 - Disclosure - Note 7 - Segment Information (Details) - Statements of Operations by Segment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/StatementsofOperationsbySegmentTable</Role>
      <ShortName>Note 7 - Segment Information (Details) - Statements of Operations by Segment</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>029 - Disclosure - Note 7 - Segment Information (Details) - Summary of Assets by Segment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/SummaryofAssetsbySegmentTable</Role>
      <ShortName>Note 7 - Segment Information (Details) - Summary of Assets by Segment</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>030 - Disclosure - Note 7 - Segment Information (Details) - Expenditures for Additions to Long-Lived Assets by Segment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/ExpendituresforAdditionstoLongLivedAssetsbySegmentTable</Role>
      <ShortName>Note 7 - Segment Information (Details) - Expenditures for Additions to Long-Lived Assets by Segment</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>031 - Disclosure - Note 8 - Consignment Agreement and RMS Titanic Sale (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note8ConsignmentAgreementandRMSTitanicSaleDetails</Role>
      <ShortName>Note 8 - Consignment Agreement and RMS Titanic Sale (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>032 - Disclosure - Note 9 - Commitment and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note9CommitmentandContingenciesDetails</Role>
      <ShortName>Note 9 - Commitment and Contingencies (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>033 - Disclosure - Note 10 - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.prxi.com/role/Note10SubsequentEventsDetails</Role>
      <ShortName>Note 10 - Subsequent Events (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">'Monetary' elements on report '024 - Disclosure - Note 4 - Notes Payable, Royalty Payable, and Capital Lease Obligations (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'' elements on report '025 - Disclosure - Note 5 - Legal Proceedings and Contingencies (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '025 - Disclosure - Note 5 - Legal Proceedings and Contingencies (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Shares' elements on report '026 - Disclosure - Note 6 - Purchase and Registration Rights Agreements (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '032 - Disclosure - Note 9 - Commitment and Contingencies (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Process Flow-Through: 001 - Statement - Condensed Consolidated Balance Sheets (Current period unaudited)</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'May 31, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Feb. 28, 2013'</Log>
    <Log type="Info">Process Flow-Through: 002 - Statement - Condensed Consolidated Balance Sheets (Current period unaudited) (Parentheticals)</Log>
    <Log type="Info">Process Flow-Through: 003 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</Log>
    <Log type="Info">Process Flow-Through: 004 - Statement - Condensed Consolidated Statements of Cash Flow (Unaudited)</Log>
  </Logs>
  <InputFiles>
    <File>prxi-20140531.xml</File>
    <File>prxi-20140531.xsd</File>
    <File>prxi-20140531_cal.xml</File>
    <File>prxi-20140531_def.xml</File>
    <File>prxi-20140531_lab.xml</File>
    <File>prxi-20140531_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
