v3.19.3
Note 4 - Property and Equipment, Net (Details Textual) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Note To Financial Statement Details Textual        
Depreciation, Total $ 5 $ 6 $ 8 $ 10