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Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Accounting Policies [Abstract]  
Schedule of Goodwill
Goodwill:
 
(in thousands)
 
2012
  
2011
  
2010
 
Beginning balance, January 1
 $65,490  $65,499  $65,059 
Acquisition adjustments
  0   (9)  440 
Ending balance, December 31
 $65,490  $65,490  $65,499 
Schedule of Core Deposit Intangible Assets
Core Deposit Intangible:
 
(in thousands)
 
2012
  
2011
  
2010
 
Beginning balance, January 1
 $1,117  $1,342  $648 
Amortization
  (213)  (213)  (430)
Acquisition adjustments
  0   (12)  1,124 
Ending balance, December 31
 $904  $1,117  $1,342