Note 5 - Debt	3 Months Ended
Mar. 31, 2020
Notes to Financial Statements
Debt Disclosure [Text Block]	5 . Debt On September 30, 2015, we entered into a series of lending agreements with our primary lender which included agreements for a term loan and a revolving credit facility. The term loan was repaid in 2018 and the revolver has been periodically amended and extended. Effective with a September 11, 2018 amendment, the revolving line of credit’s maximum borrowing amount was $750,000. The revolver’s maturity date was April 29, 2019 and the revolver’s interest rate was based on the 30 -day LIBOR plus 2.25%. In January 2019, we borrowed $500,000 under the revolving line of credit. Effective with a March 25, 2019 amendment, the revolving line of credit’s maturity date was extended to April 28, 2020 and the interest rate was revised to the 30 -day LIBOR plus 3.00%. As amended, the revolver’s maximum borrowing amount remains $750,000. At March 31, 2020, outstanding borrowings under the revolving line of credit were $500,000 at an interest rate of 4.36%. On April 28, 2020, our revolving line of credit agreement was extended six months to October 28, 2020 under the same terms and conditions as the expiring agreement. Borrowings under the lending agreement continue to be secured by all of our tangible and intangible assets and by a mortgage on the real estate of our headquarters facility. At March 31, 2020, we were in compliance with our loan covenant requirements.

Note 5 - Debt

3 Months Ended

Mar. 31, 2020

. Debt

September 30, 2015,

we entered into a series of lending agreements with our primary lender which included agreements for a term loan and a revolving credit facility. The term loan was repaid in

2018

and the revolver has been periodically amended and extended.

Effective with a

September 11, 2018

amendment, the revolving line of credit’s maximum borrowing amount was

$750,000.

The revolver’s maturity date was

April 29, 2019

and the revolver’s interest rate was based on the

-day LIBOR plus

2.25%.

January 2019,

we borrowed

$500,000

under the revolving line of credit.

Effective with a

March 25, 2019

amendment, the revolving line of credit’s maturity date was extended to

April 28, 2020

and the interest rate was revised to the

-day LIBOR plus

3.00%.

As amended, the revolver’s maximum borrowing amount remains

$750,000.

March 31, 2020,

outstanding borrowings under the revolving line of credit were

$500,000

at an interest rate of

4.36%.

April 28, 2020,

our revolving line of credit agreement was extended

six

months to

October 28, 2020

under the same terms and conditions as the expiring agreement.

Borrowings under the lending agreement continue to be secured by all of our tangible and intangible assets and by a mortgage on the real estate of our headquarters facility. At

March 31, 2020,

we were in compliance with our loan covenant requirements.