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Note R - Earnings Per Share (EPS) - Reconciliation of Numerator of Basic and Diluted EPS Calculations (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Basic Numerator: |  |
Loss from continuing operations | $ (6,868,875) | $ (4,275,338)
Deemed dividend from trigger of anti-dilution provision feature | (1,428,966) |
Convertible preferred stock dividends | (198,033) | (769,158)
Net loss available to common stockholders (basic and diluted EPS) | $ (8,495,874) | $ (5,044,496)

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