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Note 11 - Subsequent Events
 12 Months Ended
Mar. 31, 2021
Notes to Financial Statements  
Subsequent Events [Text Block]

NOTE
11.
SUBSEQUENT EVENTS
On
May 5, 2021
we announced that our Board had declared a quarterly cash dividend of
$1.00
per share of Common Stock to be paid
May 
31,
2021
to shareholders of record as of the close of business
May 
17,
2021.