Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.3.1.900
Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2015
Dec. 31, 2014
Statement Of Financial Position [Abstract]    
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 75,000,000 75,000,000
Common stock, shares issued 29,846,991 22,630,652
Common stock, shares outstanding 29,812,998 22,621,426