Note 12 - Subsequent Events
3 Months Ended
Jun. 30, 2021
Notes to Financial Statements  
Subsequent Events [Text Block]


NOTE 12. SUBSEQUENT EVENTS
     On July 21, 2021 we announced that our Board had declared a quarterly cash dividend of $1.00 per share of Common Stock to be paid August 31, 2021 to shareholders of record as of the close of business August 2, 2021.