Note 3 - Investments

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

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

3. Investments

As of

December 31, 2020

and

2019,

investments totaled

$0

and

$335,000,

respectively, which consisted of marketable securities. Certain marketable securities were sold during the years ended

December 31, 2020

and

2019.

The total loss on marketable securities during the year ended

December 31, 2020

was

$62,000

and the total gain on marketable securities during the year ended

December 31, 2019

was

$231,000.

The loss for the year ended

December 31, 2020

was due to an unrealized gain of

$98,000

and a realized loss of

$160,000.

The gain for the year ended

December 31, 2019

was due to an unrealized gain of

$170,000

and a realized gain of

$61,000.