Securities Owned and Securities Sold, But Not Yet Purchased (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Schedule of Trading Securities and Other Trading Assets [Line Items] | ||
Securities owned deposited with the Company's subsidiaries clearing broker | $ 5,429lts_SecuritiesOwnedAndHeldAtClearingBroker | $ 4,014lts_SecuritiesOwnedAndHeldAtClearingBroker |
Securities owned, at fair value | 5,910us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned | 4,789us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned |
Level 2 [Member] | ||
Schedule of Trading Securities and Other Trading Assets [Line Items] | ||
Securities owned, at fair value |
3,464us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |
4,076us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |
Common Stock and Warrants [Member] | ||
Schedule of Trading Securities and Other Trading Assets [Line Items] | ||
Securities owned, at fair value |
1,981us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned / us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis = lts_CommonStockAndWarrantsMember |
689us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned / us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis = lts_CommonStockAndWarrantsMember |
Common Stock and Warrants [Member] | Warrants to purchase common stock | Level 2 [Member] | ||
Schedule of Trading Securities and Other Trading Assets [Line Items] | ||
Securities owned, at fair value |
$ 403us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentTypeAxis = us-gaap_WarrantMember / us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis = lts_CommonStockAndWarrantsMember |
$ 534us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentTypeAxis = us-gaap_WarrantMember / us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis = lts_CommonStockAndWarrantsMember |
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- Definition
Securities owned and held at clearing broker. No definition available.
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- Definition
Fair value of financial instruments held by a broker-dealer for their own account (proprietary securities) for trading or investment purposes determined by management based upon quoted prices of a financial instrument with similar characteristics or on a valuation technique or model. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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