Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Unaudited) (Parentheticals)

v3.7.0.1
Consolidated Balance Sheets (Unaudited) (Parentheticals) - $ / shares
Jun. 30, 2017
Dec. 31, 2016
Statement Of Financial Position [Abstract]    
Ordinary shares, par value (in dollars per shares) $ 0.001 $ 0.001
Ordinary shares, authorized 490,000,000 490,000,000
Ordinary shares, issued 233,380,598 232,555,937
Ordinary shares, outstanding 228,068,637 227,243,976
Treasury stock, shares 5,311,961 5,311,961