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MORTGAGE SERVICING RIGHTS (Tables)
3 Months Ended
Sep. 30, 2012
Accounting Policies [Abstract]  
Loans serviced for others and the fair value of mortgage servicing rights
September 30, (in thousands) 2012 2011
Residential mortgage loans serviced for others $     141,834 $     105,256
Fair value of mortgage servicing rights 989 695
Changes in mortgage servicing rights
  Three months Nine months
Periods ended September 30, (in thousands) 2012  2011  2012  2011 
Loan Servicing Rights        
Balance, beginning of period $       916  $        674  $         772  $         683 
Originated 197  75  504  181 
Amortization (1) (115) (50) (278) (165)
Balance, end of period 998  699  998  699 
Valuation Allowance        
Balance, beginning of period (123) (25) (22) (10)
(Increase) decrease in impairment reserve (1) 12  (65) (89) (80)
Balance, end of period (111) (90) (111) (90)
Loan servicing rights, net $       887  $       609  $         887  $         609