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PROPERTY AND EQUIPMENT - Summary of property and equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
PROPERTY AND EQUIPMENT    
Total $ 11,952 $ 11,908
Less accumulated depreciation (8,197) (7,823)
Property and equipment, net 3,755 4,085
Land    
PROPERTY AND EQUIPMENT    
Total 1,056 1,056
Building and Improvements    
PROPERTY AND EQUIPMENT    
Total 9,071 9,060
Computer Equipment    
PROPERTY AND EQUIPMENT    
Total 830 795
Purchased software    
PROPERTY AND EQUIPMENT    
Total 117 81
Furniture and Fixtures    
PROPERTY AND EQUIPMENT    
Total 778 778
Office Equipment    
PROPERTY AND EQUIPMENT    
Total $ 100 $ 138