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Note 6 - Business Acquisitions - Pro Forma Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Revenue $ 10,139,561 $ 8,181,142 $ 19,250,286 $ 16,195,469
Net Loss Attributable to Common Stockholders $ (2,114,348) $ (2,793,947) $ (6,192,734) $ (6,059,179)
Basic and Diluted Loss per Share (in dollars per share) $ (0.09) $ (0.15) $ (0.28) $ (0.34)
Shares Outstanding (in shares) 22,452,540 19,250,323 22,320,114 17,865,624