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Note J - Supplemental Cash Flow Information	3 Months Ended
Note J - Supplemental Cash Flow Information	Jun. 30, 2019
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	NOTE J — SUPPLEMENTAL CASH FLOW INFORMATION The Company paid income taxes of approximately $10,000 in the quarter ended June 30, 2019. The Company paid no income taxes in the quarter ended June 30, 2018. No interest was paid in either of the quarters ended June 30, 2019 and 2018.