Note 9 - Stockholders' Equity - Summary of Shares to be Issued (Details) - shares |
9 Months Ended | |
---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
|
Shares-to-be-issued, outstanding (in shares) | 2,428,329 | 2,375,762 |
Granted in current period (in shares) | 33,238 | 363,956 |
Issued in current period (in shares) | (455,906) | (387,991) |
Shares-to be issued outstanding (in shares) | 2,005,661 | 2,351,727 |