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CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares
Dec. 31, 2018
Dec. 31, 2017
Common stock, par value (in Dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized 75,000,000 75,000,000
Common stock, shares issued 28,566,652 28,191,927
Common stock, shares outstanding 28,566,652 28,191,927