Note 12 - Subsequent Events
 3 Months Ended
Jun. 30, 2019
Notes to Financial Statements  
Subsequent Events [Text Block]

NOTE
12.
SUBSEQUENT EVENTS
On
July 
17,
2019
we announced that our Board had declared a quarterly cash dividend of
$1.00
per share of Common Stock to be paid
August 
30,
2019
to shareholders of record as of the close of business
July 
29,
2019
.