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Long-Term Debt - Line of Credit Narrative (Details) (USD $)
1 Months Ended 0 Months Ended 1 Months Ended
May 31, 2014
Feb. 28, 2013
Oct. 31, 2013
Oct. 15, 2013
Dec. 31, 2013
Dec. 31, 2014
Feb. 28, 2011
Jun. 30, 2014
Line of Credit Facility [Line Items]                
Share Price (in dollars per share)       $ 15.00us-gaap_SharePrice        
Credit Facility Agreement [Member]                
Line of Credit Facility [Line Items]                
Line of credit, maximum borrowing capacity $ 25,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
      $ 19,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
     
Line of Credit Facility, Credit Agreement, Alternative Interest Rate if Earnings Before Interest, Taxes, Depreciation, and Amortization (EBITDA) Exceeds Threshold Amount, EBITDA Amount 5,000,000ldrh_LineofCreditFacilityCreditAgreementAlternativeInterestRateifEarningsBeforeInterestTaxesDepreciationandAmortizationEBITDAExceedsThresholdAmountEBITDAAmount
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
             
Minimum Net Worth Required for Compliance 12,500,000.0ldrh_MinimumNetWorthRequiredforComplianceWithCreditAgreement
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
             
Tangible Net Worth Required for Compliance With Credit Agreement 50,000,000ldrh_TangibleNetWorthRequiredforComplianceWithCreditAgreement
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
             
Compensating Balance, Amount 20,000,000us-gaap_CompensatingBalanceAmount
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
             
Line of Credit [Member]                
Line of Credit Facility [Line Items]                
Interest rate at the end of the period         5.25%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
3.50%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
   
Prime Rate [Member] | Minimum [Member] | Credit Facility Agreement [Member]                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_PrimeRateMember
             
Prime Rate [Member] | Maximum [Member] | Credit Facility Agreement [Member]                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_PrimeRateMember
             
London Interbank Offered Rate (LIBOR) [Member] | Credit Facility Agreement [Member]                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= ldrh_CreditFacilityAgreementMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
             
Series C Preferred Stock [Member]                
Line of Credit Facility [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)             154,506us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
 
Share Price (in dollars per share)             $ 1.165us-gaap_SharePrice
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
 
Fair value assumptions, risk free interest rate   3.00%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
           
Fair value assumptions, expected dividend rate   0.00%us-gaap_FairValueAssumptionsExpectedDividendRate
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
           
Fair value assumptions, expected term   7 years            
Fair value assumptions, expected volatility rate   75.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
           
Common Stock [Member]                
Line of Credit Facility [Line Items]                
Share Price (in dollars per share)               $ 24.50us-gaap_SharePrice
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
Warrant [Member] | Series C Preferred Stock [Member]                
Line of Credit Facility [Line Items]                
Fair value of warrant             $ 155,000us-gaap_WarrantsAndRightsOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Warrant [Member] | Common Stock [Member]                
Line of Credit Facility [Line Items]                
Stock issued in relation to the exercise of warrants (in shares)     10,889ldrh_StockIssuedDuringPeriodSharesExerciseofWarrantsNet
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember