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Note 12 - Subsequent Events	3 Months Ended
Note 12 - Subsequent Events	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 .