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Condensed Balance Sheets (Parenthetical) - $ / shares
Sep. 30, 2018
Dec. 31, 2017
LIABILITIES AND STOCKHOLDERS' EQUITY    
Common stock par value $ 0.001 $ 0.001
Common stock, shares authorized 20,000,000 20,000,000
Common stock, shares issued 5,883,109 7,011,128
Common stock, shares outstanding 5,883,109 7,011,128