PROPERTY AND EQUIPMENT, NET Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Construction in Progress, Gross	$ 603	$ 513
Property, plant and equipment, gross	40,534	42,047
Less: acccumulated depreciation and amortization	33,149	34,119
Property and equipment, net	7,385	7,928
Capital lease obligation, current	65	62
Capital lease obligation, non-current	190	229
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6,224	5,911
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,968	2,668
Capitalized software costs
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17,686	17,946
Leasehold and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 14,656	$ 15,522