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ACCRUED LIABILITIES (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Accrued short term liabilities    
Accrued milestone and royalty payments $ 268 $ 1,475
Accrued clinical costs 1,079 63
Accrued compensation and board fees 1,765 1,144
Accrued rent   44
Accrued manufacturing costs 2,734  
Other 2 525
Total $ 5,848 $ 3,251