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DISCONTINUED OPERATIONS (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Site
Result of discontinued operations [Abstract]      
OPERATING LOSS $ (5,438)us-gaap_OperatingIncomeLoss $ (8,612)us-gaap_OperatingIncomeLoss  
Florida [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Number of training sites     5linc_NumberOfTrainingSites
/ us-gaap_StatementGeographicalAxis
= stpr_FL
Five Training Sites [Member]      
Result of discontinued operations [Abstract]      
Revenue   765us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linc_FiveTrainingSitesMember		  
Operating expenses   1,556us-gaap_OperatingExpenses
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linc_FiveTrainingSitesMember		  
OPERATING LOSS   $ (791)us-gaap_OperatingIncomeLoss
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linc_FiveTrainingSitesMember