Note 7 - Stock Options and Other Compensation (Details Textual) |
9 Months Ended | |
|---|---|---|
|
Sep. 30, 2024
$ / shares
shares
|
May 31, 1989 |
|
| Number Of Key Executive Officer To Whom Non Statutory Stock Option Granted | 4 | |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number | shares | 767,500 | |
| Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit | $ 1 | |
| Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit | $ 1.25 |