PROPERTY AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of property and equipment [Abstract]
Property and equipment, gross	$ 78,465	$ 83,809
Less accumulated depreciation and amortization	(73,640)	(74,243)
Property and equipment, net	4,825	9,566
Construction in progress	8	0
Total	4,833	9,566
Office Furniture and Equipment [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	9,315	11,560
Computer Hardware [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	10,096	13,029
Computer Software [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	46,541	46,738
Automobiles [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	133	165
Leasehold Improvements [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	$ 12,380	$ 12,317