Note 4 - Investments

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

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

4. Investments

As of September 30, 2021, we had no investments. No marketable securities were sold during the three or nine months ended September 30, 2021.

Certain marketable securities were sold during the three months ended September 30, 2020, The total loss on marketable securities during the three months ended September 30, 2020 was $24,000, consisting of an unrealized loss of $42,000 and a realized gain of $18,000. Certain marketable securities were sold during the nine months ended September 30, 2020. The total loss on marketable securities during the nine months ended September 30, 2020 was $42,000, due to an unrealized loss of $77,000 and a realized gain of $35,000.