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Stockholders' Equity Detail on warrants issued (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Class of Warrant or Right [Line Items]      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 573,520us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights   18,395,963us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Stock Issued During Period, Shares, New Issues 799,488us-gaap_StockIssuedDuringPeriodSharesNewIssues 1,621,362us-gaap_StockIssuedDuringPeriodSharesNewIssues  
Warrant [Member]      
Class of Warrant or Right [Line Items]      
Class of Warrant or Right, Exercise Price of Warrants or Rights 1.39us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
   
Warrant [Member]      
Class of Warrant or Right [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 2.60%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_PlanNameAxis
= us-gaap_WarrantMember
   
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 8 years    
Share Based Compensation Arrangement by Share Based Payment Award Grants in Period Weighted Average Grant Date Fair Value 0.72lpx_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= us-gaap_WarrantMember
   
Warrant [Member]      
Class of Warrant or Right [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 53.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_WarrantMember