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Stock-Based Compensation Plans (Tables)
 3 Months Ended
Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock Compensation Expense
Stock compensation expense   THREE MONTHS ENDED
(in thousands)   DECEMBER 31,
   2012  2011
Stock option grants  $130    136 
Summary of Stock Activity

Outstanding options        Weighted    Weighted    Weighted 
(in thousands, except shareNumber    Average    Average    Average 
 and per share amounts)  of    Exercise    Remaining    Grant Date 
Options  Shares    Price    Term (yrs)    Fair Value 
Outstanding at                   
October 1, 2012  481,210   $17.52    3.8   $3,782 
Granted  46,180   $26.20        $489 

Exercised 

  70,800   $10.78        $388 
Outstanding at                   
December 31, 2012  456,590   $19.45    4.5   $3,883 
Exercisable at                   
December 31, 2012  360,578   $17.81    3.5   $2,847 
Vested during                   
three months ended                   
December 31, 2012  20,612             $199