CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
CONSOLIDATED BALANCE SHEETS
Common shares, par value (in dollars per share)	$ 0.001	$ 0.001
Common shares, shares authorized	800,000	800,000
Common shares, shares issued	330,643	328,196
Treasury shares, at cost	38,788	38,788