<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Version>2.4.0.6</Version>
  <ProcessingTime />
  <ReportFormat>Html</ReportFormat>
  <ContextCount>88</ContextCount>
  <ElementCount>169</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>35</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>001 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/CondensedConsolidatedBalanceSheets</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/CondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/CondensedConsolidatedStatementsOfOperations</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/CondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>101 - Disclosure - Organization and basis of presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/OrganizationAndBasisOfPresentation</Role>
      <ShortName>Organization and basis of presentation</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>102 - Disclosure - Recently adopted and recently issued accounting guidance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/RecentlyIssuedAndAdoptedAccountingGuidance</Role>
      <ShortName>Recently adopted and recently issued accounting guidance</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>103 - Disclosure - Going concern</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/GoingConcern</Role>
      <ShortName>Going concern</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>105 - Disclosure - Property and equipment, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/PropertyAndEquipmentNet</Role>
      <ShortName>Property and equipment, net</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>106 - Disclosure - Loans, Capital lease</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/LoansCapitalLease</Role>
      <ShortName>Loans, Capital lease</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>107 - Disclosure - Related party transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related party transactions</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>108 - Disclosure - Convertible notes</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.nasautomation.com/role/ConvertibleNotes</Role>
      <ShortName>Convertible notes</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>109 - Disclosure - Fair value</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/FairValue</Role>
      <ShortName>Fair value</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>110 - Disclosure - Commitments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/Commitments</Role>
      <ShortName>Commitments</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>111 - Disclosure - Stockholders' deficit</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/StockholdersDeficit</Role>
      <ShortName>Stockholders' deficit</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>112 - Disclosure - Subsequent events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent events</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>305 - Disclosure - Property and equipment, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/PropertyAndEquipmentNetTables</Role>
      <ShortName>Property and equipment, net (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>306 - Disclosure - Loans, Capital lease (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/LoansCapitalLeaseTables</Role>
      <ShortName>Loans, Capital lease (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>308 - Disclosure - Convertible notes (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.nasautomation.com/role/ConvertibleNotesTables</Role>
      <ShortName>Convertible notes (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>309 - Disclosure - Fair value (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/FairValueTables</Role>
      <ShortName>Fair value (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>311 - Disclosure - Stockholders' deficit (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/StockholdersDeficitTables</Role>
      <ShortName>Stockholders' deficit (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>40301 - Disclosure - Going concern (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/GoingConcernDetails</Role>
      <ShortName>Going concern (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>40501 - Disclosure - Property and equipment, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/PropertyAndEquipmentNetDetails</Role>
      <ShortName>Property and equipment, net (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>40601 - Disclosure - Loans, Capital lease (Schedule of Outstanding Balance of Loans) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/LoansCapitalLeaseScheduleOfOutstandingBalanceOfLoansDetails</Role>
      <ShortName>Loans, Capital lease (Schedule of Outstanding Balance of Loans) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>40602 - Disclosure - Loans, Capital lease (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/LoansCapitalLeaseNarrativeDetails</Role>
      <ShortName>Loans, Capital lease (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>40701 - Disclosure - Related party transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related party transactions (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>40801 - Disclosure - Convertible notes (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.nasautomation.com/role/ConvertibleNotesNarrativeDetails</Role>
      <ShortName>Convertible notes (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>40802 - Disclosure - Convertible notes (Table of Beneficial Conversion Features) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.nasautomation.com/role/ConvertibleNotesTableOfBeneficialConversionFeaturesDetails</Role>
      <ShortName>Convertible notes (Table of Beneficial Conversion Features) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>40901 - Disclosure - Fair value (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/FairValueDetails</Role>
      <ShortName>Fair value (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>41001 - Disclosure - Commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/CommitmentsDetails</Role>
      <ShortName>Commitments (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>41101 - Disclosure - Stockholders' deficit (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/StockholdersDeficitNarrativeDetails</Role>
      <ShortName>Stockholders' deficit (Narrative) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>41102 - Disclosure - Stockholders' deficit (Summary Of Warrant Activity) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/StockholdersDeficitSummaryOfWarrantActivityDetails</Role>
      <ShortName>Stockholders' deficit (Summary Of Warrant Activity) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>41201 - Disclosure - Subsequent events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nasautomation.com/role/SubsequentEventsDetails</Role>
      <ShortName>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">Element us-gaap_DebtInstrumentConvertibleConversionPrice1 had a mix of decimals attribute values: 2 3.</Log>
    <Log type="Info">Element us-gaap_DebtInstrumentInterestRateStatedPercentage had a mix of decimals attribute values: 1 2.</Log>
    <Log type="Info">Process Flow-Through: 002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Jun. 30, 2011'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2010'</Log>
    <Log type="Info">Process Flow-Through: 003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</Log>
    <Log type="Info">Process Flow-Through: 004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</Log>
    <Log type="Info">Process Flow-Through: 005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</Log>
  </Logs>
  <InputFiles>
    <File>nasv-20120630.xml</File>
    <File>nasv-20120630.xsd</File>
    <File>nasv-20120630_cal.xml</File>
    <File>nasv-20120630_def.xml</File>
    <File>nasv-20120630_lab.xml</File>
    <File>nasv-20120630_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
