XML 31 R12.htm IDEA: XBRL DOCUMENT v3.8.0.1
FOLLOW-ON EQUITY OFFERINGS
12 Months Ended
Dec. 31, 2017
FOLLOW-ON EQUITY OFFERING [Abstract]  
FOLLOW-ON EQUITY OFFERINGS
4. FOLLOW-ON EQUITY OFFERINGS
 
 In February 2015, the Company issued 1,540,000 America depositary shares ("ADSs"), representing 38,500,000 ordinary shares, through a follow-on public offering. The proceeds, net of issuance cost of $2.0 million, were $28.0 million.