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PROPERTY AND EQUIPMENT (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Summary of property and equipment [Abstract]    
Property and equipment, gross $ 54,551 $ 55,989
Less accumulated depreciation and amortization (49,290) (50,129)
Property and equipment, net 5,261 5,860
Construction in progress 865 904
Total 6,100 6,764
Office furniture and equipment    
Summary of property and equipment [Abstract]    
Property and equipment, gross 2,638 3,441
Computer hardware    
Summary of property and equipment [Abstract]    
Property and equipment, gross 3,879 4,239
Computer software    
Summary of property and equipment [Abstract]    
Property and equipment, gross 43,454 43,416
Automobiles    
Summary of property and equipment [Abstract]    
Property and equipment, gross 81 81
Leasehold improvements    
Summary of property and equipment [Abstract]    
Property and equipment, gross 4,230 4,812
Assets Held under Capital Leases [Member]    
Summary of property and equipment [Abstract]    
Property and equipment, gross $ 269 $ 0