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Capital Stock (Tables)
12 Months Ended
Dec. 31, 2014
Schedule of Stock by Class [Table Text Block]
    Number of Shares     Capital Stock  
Issued and outstanding   2014     2013     2014     2013  
                         
Common shares, $0.01 par value   28,167,408     28,167,248   $ 282   $ 282  
Class N preferred shares, $10.00 par value   575     579   $ 6   $ 6