EQUIPMENT AND LEASEHOLD IMPROVEMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Equipment and leasehold improvements
Total	$ 18,148us-gaap_PropertyPlantAndEquipmentGross		$ 17,576us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization	(10,858)		(10,238)
Equipment and leasehold improvements, net	7,290us-gaap_PropertyPlantAndEquipmentNet		7,338us-gaap_PropertyPlantAndEquipmentNet
Depreciation and amortization expenses	620us-gaap_DepreciationNonproduction	533us-gaap_DepreciationNonproduction
Office equipment
Equipment and leasehold improvements
Total	9,530		9,387
Furniture and fixtures
Equipment and leasehold improvements
Total	2,480		2,258
Leasehold improvements
Equipment and leasehold improvements
Total	$ 6,138		$ 5,931

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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