EQUIPMENT AND LEASEHOLD IMPROVEMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Equipment and leasehold improvements
Total	$ 20,085		$ 20,085		$ 17,576
Less accumulated depreciation and amortization	(11,797)		(11,797)		(10,238)
Equipment and leasehold improvements, net	8,288		8,288		7,338
Depreciation and amortization expenses	646	$ 542	1,954	$ 1,595
Office equipment
Equipment and leasehold improvements
Total	10,427		10,427		9,387
Furniture and fixtures
Equipment and leasehold improvements
Total	2,858		2,858		2,258
Leasehold improvements
Equipment and leasehold improvements
Total	$ 6,800		$ 6,800		$ 5,931