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PROPERTY AND EQUIPMENT (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
PROPERTY AND EQUIPMENT    
Property and equipment, gross $ 1,391 $ 1,452
Less accumulated depreciation and amortization (1,208) (1,245)
Property and equipment, net 183 207
Furniture and computer equipment    
PROPERTY AND EQUIPMENT    
Property and equipment, gross 1,268 1,224
Lab equipment    
PROPERTY AND EQUIPMENT    
Property and equipment, gross 12 130
Leasehold improvements    
PROPERTY AND EQUIPMENT    
Property and equipment, gross $ 111 $ 98