Note 6 - Stock Based Compensation - Stock Option Activity (Details) - $ / shares |
9 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jul. 15, 2020 |
Sep. 30, 2021 |
Dec. 31, 2020 |
|
| Outstanding, share (in shares) | 263,928 | 0 | |
| Outstanding, weighted average exercise price (in dollars per share) | $ 24.00 | $ 0 | |
| Granted, share (in shares) | 791,790 | 0 | 791,790 |
| Granted, weighted average exercise price (in dollars per share) | $ 0 | $ 24.00 | |
| Exercisable, share (in shares) | (87,976) | (527,862) | |
| Exercisable, weighted average exercise price (in dollars per share) | $ 24.00 | $ 24.00 | |
| Outstanding, share (in shares) | 175,952 | 263,928 | |
| Outstanding, weighted average exercise price (in dollars per share) | $ 24.00 | $ 24.00 |
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of non-vested options outstanding. No definition available.
|
| X | ||||||||||
- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available.
|
| X | ||||||||||
- Definition Number of options vested. No definition available.
|
| X | ||||||||||
- Definition Weighted average grant-date fair value of options vested. No definition available.
|