EQUIPMENT AND LEASEHOLD IMPROVEMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equipment and leasehold improvements
Total	$ 21,182	$ 17,576
Less accumulated depreciation and amortization	(12,484)	(10,238)
Equipment and leasehold improvements, net	8,698	7,338
Depreciation and amortization expenses	2,635	2,226	$ 2,128
Office equipment
Equipment and leasehold improvements
Total	11,193	9,387
Furniture and fixtures
Equipment and leasehold improvements
Total	2,916	2,258
Leasehold improvements
Equipment and leasehold improvements
Total	$ 7,073	$ 5,931