Note 5 - Marketable Securities

12 Months Ended

Dec. 31, 2016

Notes to Financial Statements

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

Note

5

–

MARKETABLE SECURITIES

At

December

 

31,

2016,

available-for-sale securities, consisting entirely of U.S. government securities, are due within

one

year or less by contractual maturity.

For trading securities, in

2016

the Company recorded realized losses of

$20,430

and unrealized gains of

$82,159.

In

2015

the Company recorded realized gains of

$31,902

and unrealized losses of

$67,643.