Note 11 - Net Loss Per Share - Schedule of Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
|
| Net Income (Loss) Attributable to Parent, Total | $ (2,425) | $ (3,252) |
| Weighted average shares outstanding—basic and diluted (in shares) | 13,107,725 | 11,956,874 |
| Basic and diluted net loss per share (in dollars per share) | $ (0.19) | $ (0.27) |