2.4.0.8132 - Disclosure - Stockholders equity (Detail)truefalsefalse1false USDfalsefalse$eol_PE793818--1310-Q0005_STD_1765_20130731_0http://www.sec.gov/CIK0001450708duration2008-10-01T00:00:002013-07-31T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false truefalseeol_PE793818--1310-Q0005_STD_31_20091031_0_711196x713713http://www.sec.gov/CIK0001450708duration2009-10-01T00:00:002009-10-31T00:00:00falsefalseCommon Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonStockMemberus-gaap_StatementClassOfStockAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepure03false USDtruefalse$eol_PE793818--1310-Q0005_STD_31_20090331_0_711196x713713_753940x827982http://www.sec.gov/CIK0001450708duration2009-03-01T00:00:002009-03-31T00:00:00falsefalseCommon Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonStockMemberus-gaap_StatementClassOfStockAxisexplicitMemberfalsefalsePublic Offering [Member]aurm_StockOfferingByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiaurm_PublicOfferingMemberaurm_StockOfferingByTypeAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instanceshares0iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDtruefalse$eol_PE793818--1310-Q0005_STD_30_20080930_0_711196x713713_711672x818199_753940x709629http://www.sec.gov/CIK0001450708duration2008-09-01T00:00:002008-09-30T00:00:00falsefalseCommon Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonStockMemberus-gaap_StatementClassOfStockAxisexplicitMemberfalsefalseFounder [Member]us-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldiaurm_FounderMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalsePrivate Placement [Member]aurm_StockOfferingByTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_PrivatePlacementMemberaurm_StockOfferingByTypeAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instanceshares0iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3aurm_StockholdersEquityNoteLineItemsaurm_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Stockholders Equity Note [Line Items]2false 4us-gaap_StockIssuedDuringPeriodSharesNewIssuesus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse96000009600000falsefalsefalse4truefalsefalse9600000096000000falsefalsefalsexbrli:sharesItemTypesharesNumber of new stock issued during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 false1Shares issued3false 4us-gaap_ProceedsFromIssuanceOfCommonStockus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse2100021000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1200012000USD$falsetruefalse4truefalsefalse90009000USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe cash inflow from the additional capital contribution to the entity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 false2Proceeds from issuance of shares4false 4us-gaap_StockholdersEquityNoteStockSplitConversionRatio1us-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse88falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:pureItemTypepureRatio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 false0Stock split, number of shares issued for each share held5false 4aurm_StockholdersEquityNoteStockSplitDistributionDateaurm_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00October 2009falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalseus-types:dateStringItemTypenormalizedstringThis item represents the date, which may be expressed in a variety of ways, when additional shares are distributed from a stock split.No definition available.false0Stock split, distribution datefalseStockholders equity (Detail) (USD $)NoRoundingNoRoundingUnKnownUnKnowntruefalsefalseSheethttp://auruminc.net/taxonomy/role/DisclosureStockholdersEquity45