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 |

X
- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration