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Condensed Balance Sheets (Unaudited) (Parenthetical) - $ / shares
Sep. 30, 2018
Dec. 31, 2017
Stockholders Equity    
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 25,000,000 25,000,000
Common stock, issued 16,106,681 15,286,540
Common stock, outstanding 16,106,681 15,286,540