PROPERTY AND EQUIPMENT, NET Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Construction in Progress, Gross	$ 589	$ 513
Property, plant and equipment, gross	40,274	42,047
Less: acccumulated depreciation and amortization	32,998	34,119
Property and equipment, net	7,276	7,928
Capital lease obligation, current	68	62
Capital lease obligation, non-current	172	229
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 6,181	5,911
Remaining useful lives (less than)	3 years
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,967	2,668
Capitalized software costs
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17,827	17,946
Leasehold and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 14,299	$ 15,522
Remaining useful lives (less than)	3 years