XML 43 R32.htm IDEA: XBRL DOCUMENT v3.8.0.1
Property and Equipment - Summary of Property and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Property Plant And Equipment [Line Items]    
Property and Equipment, Gross $ 443 $ 453
Accumulated depreciation and amortization (401) (387)
Property and equipment, net $ 42 66
Computer Equipment    
Property Plant And Equipment [Line Items]    
Estimated Life 3 years  
Property and Equipment, Gross $ 74 84
Lab Equipment    
Property Plant And Equipment [Line Items]    
Estimated Life 5 years  
Property and Equipment, Gross $ 142 142
Furniture and Fixtures    
Property Plant And Equipment [Line Items]    
Estimated Life 5 years  
Property and Equipment, Gross $ 83 83
Computer Software    
Property Plant And Equipment [Line Items]    
Estimated Life 3 years  
Property and Equipment, Gross $ 85 85
Leasehold Improvements    
Property Plant And Equipment [Line Items]    
Estimated Life Lesser of useful life or life of the lease  
Property and Equipment, Gross $ 59 $ 59