Note 11 - Related Party Transactions (Details Textual) - USD ($) |
12 Months Ended | |
---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
|
Payment to Acquire Life Insurance Policy, Investing Activities | $ (0) | $ 5,197,000 |
Directors and former CFO [Member] | ||
Payment to Acquire Life Insurance Policy, Investing Activities | 1,500,000 | 1,400,000 |
Director Jones [Member] | ||
Payment to Acquire Life Insurance Policy, Investing Activities | $ 6,157 | $ 5,734 |