v3.19.3
Note 6 - Accrued Liabilities (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
   
September 30,
   
December 31,
 
   
2019
   
2018
 
Payroll and related expenses
  $
640
    $
241
 
Accrued term loan final payment
   
608
     
421
 
Accrued clinical trial expense
   
26
     
-
 
Professional fees and other costs
   
899
     
195
 
Total accrued liabilities
  $
2,173
    $
857