Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical)

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CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - $ / shares
Mar. 31, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, authorized 5,000,000 5,000,000
Preferred stock, issued 0 0
Preferred stock, outstanding 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, authorized 150,000,000 150,000,000
Common stock, issued 8,010,790 7,830,040
Common stock, outstanding 8,010,790 7,830,040