2.4.0.80045 - Disclosure - 4. 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sharefalsefalsefalse3falsefalsefalse00$2.91 per sharefalsefalsefalse4falsefalsefalse00$2.91 per sharefalsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Ending balance9false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse9false truefalseFrom2013-04-01to2013-06-30_CostBasisTotalCostMemberhttp://www.sec.gov/CIK0000098618duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCost Basis Total Costus-gaap_SecurityOwnedNotReadilyMarketableAxisxbrldihttp://xbrl.org/2006/xbrldiALAN_CostBasisTotalCostMemberus-gaap_SecurityOwnedNotReadilyMarketableAxisexplicitMembernanafalse0Cost Basis Total Cost10false 4ALAN_MarketableSecuritiesBeginningBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 1,012,700 falsefalsefalse2falsefalsefalse00 1,434,500 falsefalsefalse3falsefalsefalse00 2,016,600 falsefalsefalse4falsefalsefalse00 3,189,000 falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Beginning balance11false 4ALAN_MarketableSecuritesSharesSoldALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00- falsefalsefalse2falsefalsefalse00 (421,800)falsefalsefalse3falsefalsefalse00 (582,100)falsefalsefalse4falsefalsefalse00 (1,172,400)falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Shares sold12false 4ALAN_MarketableSecuritiesEndingBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 1,012,700 falsefalsefalse2falsefalsefalse00 1,012,700 falsefalsefalse3falsefalsefalse00 1,434,500 falsefalsefalse4falsefalsefalse00 2,016,600 falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Ending balance13false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse13false truefalseFrom2013-04-01to2013-06-30_MarketValuePerShareMemberhttp://www.sec.gov/CIK0000098618duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseMarket Value Per Shareus-gaap_SecurityOwnedNotReadilyMarketableAxisxbrldihttp://xbrl.org/2006/xbrldiALAN_MarketValuePerShareMemberus-gaap_SecurityOwnedNotReadilyMarketableAxisexplicitMembernanafalse0Market Value Per Share14false 4ALAN_MarketableSecuritiesBeginningBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse005.21falsefalsefalse2falsefalsefalse003.92falsefalsefalse3falsefalsefalse003.74falsefalsefalse4falsefalsefalse003.26falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Beginning balance15false 4ALAN_MarketableSecuritiesEndingBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse004.49falsefalsefalse2falsefalsefalse005.21falsefalsefalse3falsefalsefalse003.92falsefalsefalse4falsefalsefalse003.74falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Ending balance16false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse17false truefalseFrom2013-04-01to2013-06-30_MarketValueTotalValueMemberhttp://www.sec.gov/CIK0000098618duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseMarket Value Total Valueus-gaap_SecurityOwnedNotReadilyMarketableAxisxbrldihttp://xbrl.org/2006/xbrldiALAN_MarketValueTotalValueMemberus-gaap_SecurityOwnedNotReadilyMarketableAxisexplicitMembernanafalse0Market Value Total Value17false 4ALAN_MarketableSecuritiesBeginningBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 1,813,100 falsefalsefalse2falsefalsefalse00 1,932,400 falsefalsefalse3falsefalsefalse00 2,591,800 falsefalsefalse4falsefalsefalse00 3,572,600 falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Beginning balance18false 4ALAN_MarketableSecuritiesEndingBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 1,562,600 falsefalsefalse2falsefalsefalse00 1,813,100 falsefalsefalse3falsefalsefalse00 1,932,400 falsefalsefalse4falsefalsefalse00 2,591,800 falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Ending balance19false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse21false truefalseFrom2013-04-01to2013-06-30_AccumulatedUnrealizedGainMemberhttp://www.sec.gov/CIK0000098618duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseAccumulated Unrealized Gainus-gaap_SecurityOwnedNotReadilyMarketableAxisxbrldihttp://xbrl.org/2006/xbrldiALAN_AccumulatedUnrealizedGainMemberus-gaap_SecurityOwnedNotReadilyMarketableAxisexplicitMembernanafalse0Accumulated Unrealized Gain20false 4ALAN_MarketableSecuritiesBeginningBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00800,400 falsefalsefalse2falsefalsefalse00 497,900 falsefalsefalse3falsefalsefalse00 575,200 falsefalsefalse4falsefalsefalse00 383,600 falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Beginning balance21false 4ALAN_MarketableSecuritiesEndingBalanceALAN_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00549,900 falsefalsefalse2falsefalsefalse00800,400 falsefalsefalse3falsefalsefalse00 497,900 falsefalsefalse4falsefalsefalse00 575,200 falsefalsefalsexbrli:stringItemTypestringNo authoritative reference available.No definition available.false0Ending balancefalse4. MARKETABLE SECURITIES - RESTRICTED (Details)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://alanco.com/role/MarketableSecurities-RestrictedDetails421