PROPERTY AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
PROPERTY AND EQUIPMENT
Property and equipment, gross	$ 30,558	$ 29,258
Less: accumulated depreciation and amortization	(22,867)	(20,883)
Total property and equipment, net	7,691	8,375
Computer equipment and capitalized software
PROPERTY AND EQUIPMENT
Property and equipment, gross	25,260	24,940
Leasehold improvements
PROPERTY AND EQUIPMENT
Property and equipment, gross	2,055	2,042
Furniture and other equipment
PROPERTY AND EQUIPMENT
Property and equipment, gross	1,488	1,450
Projects in progress
PROPERTY AND EQUIPMENT
Property and equipment, gross	$ 1,755	$ 826

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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