Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares $ / shares in Thousands |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2020 |
Dec. 31, 2019 |
|
| Common shares, par value (in dollars per share) | $ 0 | $ 0 |
| Common shares, authorized | Unlimited | Unlimited |
| Common shares, issued (in shares) | 14,139,074 | 12,006,874 |
| Common shares, outstanding (in shares) | 14,139,074 | 12,006,874 |