Note 9 - Leases - Summary of Operating Lease Obligations (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Operating lease liability- short term | $ 56 | $ 94 |
| Operating lease liability - long term | 0 | $ 56 |
| Total Operating Lease Liability | $ 56 |