Note 3 - Investments

12 Months Ended

Dec. 31, 2019

Notes to Financial Statements

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

3. Investments

As of

December 31, 2019

and

2018,

investments totaled

$335,000

and

$258,000,

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

December 31, 2019

and

2018.

The total gain on marketable securities during the year ended

December 31, 2019

was

$231,000

and the total loss on marketable securities during the year ended

December 31, 2018

was

$50,000.

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.

The loss for the year ended

December 31, 2018

was due to an unrealized loss of

$57,000

partially offset by a realized gain of

$7,000.