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Basic and Diluted Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2013
Earnings Per Share Abstract  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
     Quarter ended September 30,  Nine months ended September 30,
(In thousands, except share and per share data)  2013  2012  2013  2012
Basic and diluted:            
 Net earnings $1,792 $1,609 $5,388 $5,103
 Weighted average common shares outstanding  3,643,028  3,642,876  3,642,967  3,642,807
  Earnings per share $0.49 $0.44 $1.48 $1.40