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Condensed consolidated balance sheets (Parenthetical) - $ / shares
Jun. 30, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.000001 $ 0.000001
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 10,727,221 10,695,108
Common stock, shares outstanding 10,727,221 10,695,108