CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating activities:
Net loss	$ (10,977)us-gaap_NetIncomeLoss	$ (27,935)us-gaap_NetIncomeLoss	$ (9,701)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used in operating activities:
Bad debt expense	603us-gaap_ProvisionForDoubtfulAccounts	517us-gaap_ProvisionForDoubtfulAccounts	587us-gaap_ProvisionForDoubtfulAccounts
Provision for excess and obsolete inventories	1,173us-gaap_InventoryWriteDown	641us-gaap_InventoryWriteDown	1,565us-gaap_InventoryWriteDown
Depreciation and amortization	4,682	4,024	3,133
Stock-based compensation	5,225us-gaap_ShareBasedCompensation	1,269us-gaap_ShareBasedCompensation	295us-gaap_ShareBasedCompensation
Accretion related to warrants and discounts on long-term debt	20	6,900	1,404
Change in fair value of common stock warrants	0us-gaap_FairValueAdjustmentOfWarrants	5,593us-gaap_FairValueAdjustmentOfWarrants	1,643us-gaap_FairValueAdjustmentOfWarrants
Beneficial conversion related to promissory notes	0	7,413	0
Deferred income tax expense	278us-gaap_DeferredIncomeTaxExpenseBenefit	37us-gaap_DeferredIncomeTaxExpenseBenefit	(250)us-gaap_DeferredIncomeTaxExpenseBenefit
Loss on disposal of assets	246us-gaap_GainLossOnDispositionOfAssets1	57us-gaap_GainLossOnDispositionOfAssets1	163us-gaap_GainLossOnDispositionOfAssets1
Unrealized foreign currency (gain) loss	(389)	713	817
Changes in operating assets and liabilities:
Cash restricted for line of credit agreement	2,000	0	(1,000)
Accounts receivable	(5,557)	(6,313)	(3,114)
Prepaid expenses and other current assets	(474)	(2,141)	660
Inventory	(10,059)us-gaap_IncreaseDecreaseInInventories	(1,231)us-gaap_IncreaseDecreaseInInventories	(5,504)us-gaap_IncreaseDecreaseInInventories
Other assets	(15)	215	99
Accounts payable	1,008	(190)	2,027
Accrued expenses	2,815	4,505	1,921
Other long-term liabilities	0	(50)	892
Net cash used in operating activities	(9,421)	(5,976)	(4,363)
Investing activities:
Proceeds from sale of property and equipment	19	54	50
Purchase of intangible assets	(626)	(780)	(675)
Purchase of property and equipment	(11,229)	(3,757)	(5,245)
Net cash used in investing activities	(11,836)	(4,483)	(5,870)
Financing activities:
Proceeds from issuance of common stock	36,628	86,250	71
Stock issuance costs	(2,634)us-gaap_PaymentsOfStockIssuanceCosts	(8,744)us-gaap_PaymentsOfStockIssuanceCosts	0us-gaap_PaymentsOfStockIssuanceCosts
Exercise of stock options	2,363	235	132
Proceeds from Employee Stock Purchase Plan	95	976	0
Proceeds from issuance of common stock under Employee Stock Purchase Plan	2,148us-gaap_ProceedsFromStockPlans	0us-gaap_ProceedsFromStockPlans	0us-gaap_ProceedsFromStockPlans
Purchase of treasury stock	(8)	0	0
Dividends on Series C Preferred Stock	0	(17,143)	0
Proceeds from exercise of common stock warrants	0us-gaap_ProceedsFromWarrantExercises	4us-gaap_ProceedsFromWarrantExercises	0us-gaap_ProceedsFromWarrantExercises
Payments on capital leases	(42)	(22)	(163)
Net proceeds (payments) on short-term financings	2,035	759	551
Proceeds from line of credit	0	376	11,767
Payments on line of credit	0	(1,209)	0
Proceeds from long-term debt	0	0	16,311
Payments on long-term debt	(1,710)us-gaap_RepaymentsOfLongTermDebt	(13,711)us-gaap_RepaymentsOfLongTermDebt	(4,603)us-gaap_RepaymentsOfLongTermDebt
Debt issuance costs	0us-gaap_PaymentsOfDebtIssuanceCosts	0us-gaap_PaymentsOfDebtIssuanceCosts	(198)us-gaap_PaymentsOfDebtIssuanceCosts
Net cash provided by financing activities	38,875	47,771	23,868
Effect of exchange rate on cash	(413)	231	(99)
Net change in cash and cash equivalents	17,205	37,543	13,536
Cash and cash equivalents, beginning of period	56,678	19,135	5,599
Cash and cash equivalents, end of period	73,883	56,678	19,135
Supplemental disclosure of interest and income taxes paid
Cash paid for interest	953us-gaap_InterestPaid	2,234us-gaap_InterestPaid	2,246us-gaap_InterestPaid
Cash paid for taxes	974us-gaap_IncomeTaxesPaid	1,599us-gaap_IncomeTaxesPaid	1,414us-gaap_IncomeTaxesPaid
Supplemental disclosure of non-cash investing and financing activities
Increase (decrease) in property and equipment in accounts payable	(396)	206	351
Capital lease related to purchase of fixed assets	50	0	0
Reclass warrants to equity	0ldrh_ReclassificationofWarrantLiability	(9,760)ldrh_ReclassificationofWarrantLiability	0ldrh_ReclassificationofWarrantLiability
Conversion of notes and accrued interest to common stock	$ 0us-gaap_ProceedsFromConvertibleDebt	$ 14,470us-gaap_ProceedsFromConvertibleDebt	$ 0us-gaap_ProceedsFromConvertibleDebt

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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The cash outflow to reacquire common stock during the period.

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