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Note 10 - Subsequent Events	9 Months Ended
Note 10 - Subsequent Events	Dec. 31, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 10. SUBSEQUENT EVENTS On January 23, 2019 we announced that our Board had declared a quarterly cash dividend of $1.00 per share of Common Stock to be paid February 28, 2019 to shareholders of record as of the close of business February 4, 2019 .