XML 139 R42.htm IDEA: XBRL DOCUMENT v2.4.0.8
5. Net income per ordinary share (Tables)
12 Months Ended
Dec. 31, 2012
Net Income Per Ordinary Share Tables  
Basic and diluted number of shares
    2012     2011     2010  
    Number of shares  
                   
Weighted average number of ordinary shares for the purposes of basic net income per share     2,070,685       2,087,922       2,099,894  
Effect of dilutive potential ordinary shares:  Stock options     5,630       14,277       43,481  
Weighted average number of ordinary shares for the purposes of diluted net income per share     2,076,315       2,102,199       2,143,375