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v3.19.1

Selected Balance Sheet Information (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Other Current Assets [Line Items] |  |
Prepaid manufacturing expenses | $ 415 | $ 0
Prepaid insurances | 287 | 419
Prepaid consulting, subscriptions and other expenses | 127 | 132
Prepaid clinical research organizations | 22 | 0
Prepaid conferences, travel | 3 | 42
Other receivables | 6 | 0
Total | $ 860 | $ 593

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