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Note 2 - Summary of Significant Accounting Policies (Details) - Schedule of Earnings per Share, Basic and Diluted - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Schedule of Earnings per Share, Basic and Diluted [Abstract]    
Net income (loss) (in Dollars) $ 1,655,021 $ (1,209,390)
Weighted average shares outstanding – basic [1] 28,253,115 27,345,106
Dilutive stock options and unvested restricted stock 440,364 0
Weighted average shares outstanding – diluted 28,693,479 27,345,106
– basic (in Dollars per share) $ 0.06 $ (0.04)
– diluted (in Dollars per share) $ 0.06 $ (0.04)
[1] Including 821,534 and 466,967 shares that were granted and vested but not yet issued for the three months ended March 31, 2018 and 2017, respectively.