Note 11 - Net Loss Per Share (Tables)
|
3 Months Ended |
Mar. 31, 2020 |
|---|
| Notes Tables |
|
| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
| | | | | | | | | | | | | | Net loss | | $ | (2,425 | ) | | $ | (3,252 | ) | | Weighted average shares outstanding—basic and diluted | | | 13,107,725 | | | | 11,956,874 | | | Basic and diluted net loss per share | | $ | (0.19 | ) | | $ | (0.27 | ) | |
| Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
| | | | | | | | | | | | | | Employee and non-employee stock options | | | 1,181,309 | | | | 674,045 | | | Common shares issuable under common share purchase warrants | | | 255,000 | | | | 807,563 | | | Common shares issuable under deferred unit plan | | | 21,183 | | | | 21,183 | | |