PROPERTY AND EQUIPMENT, NET (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 60,754us-gaap_PropertyPlantAndEquipmentGross	$ 55,830us-gaap_PropertyPlantAndEquipmentGross
Less: acccumulated depreciation and amortization	50,914	43,841
Property and equipment, net	9,840us-gaap_PropertyPlantAndEquipmentNet	11,989us-gaap_PropertyPlantAndEquipmentNet
Construction in Progress, Gross	1,006us-gaap_ConstructionInProgressGross	595us-gaap_ConstructionInProgressGross
Impairment of long-lived assets	662us-gaap_AssetImpairmentCharges	1,336us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges
Capital lease obligation, current	77us-gaap_CapitalLeaseObligationsCurrent	0us-gaap_CapitalLeaseObligationsCurrent
Capital lease obligation, non-current	348	0
Capital lease obligations incurred	557us-gaap_CapitalLeaseObligationsIncurred	0us-gaap_CapitalLeaseObligationsIncurred
Noncash or part noncash acquisition, fixed assets acquired	1,221
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,806	8,933
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,352	5,438
Capitalized software costs
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	25,228	24,665
Leasehold and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,368	$ 16,794

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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