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Accrued and Other Liabilities
6 Months Ended
Jun. 30, 2019
Payables And Accruals [Abstract]  
Accrued and Other Liabilities
6. Accrued and Other Liabilities

 

Accrued and other current liabilities consisted of the following (in $000s):

 

    December 31,     June 30,  
    2018     2019  
Accrued research and development   $ 1,110     $ 1,005  
Accrued legal and professional fees     259       182  
Other current liabilities     363       207  
    $ 1,732     $ 1,394