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INCOME PER COMMON SHARE (Tables)
12 Months Ended
Dec. 31, 2012
INCOME PER COMMON SHARE [Abstract]  
Schedule of calculation of income per common share
Income per common share is calculated for the years ended December 31, 2012, 2011 and 2010 as follows:
 
(thousands except per share data) 
2012
  
2011
  
2010
 
Net income for basic and diluted per share calculation
 $28,095  $8,470  $1,226 
              
Weighted average common shares outstanding – basic
  10,558   9,757   9,351 
Effect of potentially dilutive securities
  79   399   512 
Weighted average common shares outstanding – diluted
  10,637   10,156   9,863 
              
Basic net income per share
 $2.66  $0.87  $0.13 
Diluted net income per share
 $2.64  $0.83  $0.12