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PROPERTY AND EQUIPMENT (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Summary of property and equipment [Abstract]    
Property and equipment, gross $ 55,256 $ 55,708
Less accumulated depreciation and amortization (52,374) (51,214)
Property and equipment, net 2,882 4,494
Construction in progress 1,357 864
Total 4,239 5,358
Office furniture and equipment    
Summary of property and equipment [Abstract]    
Property and equipment, gross 2,648 2,739
Computer hardware    
Summary of property and equipment [Abstract]    
Property and equipment, gross 3,755 3,856
Computer software    
Summary of property and equipment [Abstract]    
Property and equipment, gross 44,303 44,264
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 4,292 4,508
Assets Held under Capital Leases [Member]    
Summary of property and equipment [Abstract]    
Property and equipment, gross $ 177 $ 260