Note 14 - Related Party Transactions - Compensation of Key Management Personnel (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Statement Line Items [Line Items] | ||
| Salaries and other short term employee benefits | $ 1,941 | $ 1,726 |
| Share-based payments (Note 9(b), (c), and (d)) | 2,219 | 1,853 |
| Key management personnel compensation | $ 4,160 | $ 3,579 |