Note 12 - Net Loss Per Share - Schedule of Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
| Net Income (Loss) Attributable to Parent, Total | $ (2,448) | $ (1,387) | $ (8,169) | $ (3,772) |
| Weighted average shares outstanding—basic and diluted (in shares) | 12,006,874 | 7,836,683 | 11,981,233 | 7,406,378 |
| Basic and diluted net loss per share (in dollars per share) | $ (0.20) | $ (0.18) | $ (0.68) | $ (0.51) |