Note 3 - Investments

12 Months Ended

Dec. 31, 2021

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

3. Investments

As of December 31, 2021 and 2020, no marketable securities investments were owned.  No marketable securities were sold during the year ended December 31, 2021. Certain marketable securities were sold during the year ended December 31, 2020, for a net realized  loss of $62,000.