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Employee Benefits (Tables)
6 Months Ended
Jun. 30, 2012
Employee Benefits [Abstract]  
Summary of funding and administrative cost of qualified noncontributory defined benefit retirement plan and 401(k) plan charged to salaries and employee benefits
Funding and administrative costs of the qualified noncontributory defined benefit retirement plan and 401(k) plan charged to pension and other employee benefits in the consolidated statements of income for the three and six-month periods ended June 30, 2012 and 2011 are as follows (in thousands):

     
For the Three Months
     
For the Six Months
 
     
Ended June 30,
     
Ended June 30,
 
   
2012
 
2011
 
2012
 
2011
                 
Qualified noncontributory defined benefit retirement plan
 
$
 
149
 
 
134
 
 
291
 
 
258
                 
401(k) plan
 
74
 
82
 
110
 
157

Components of net periodic pension cost of nonqualified defined benefit retirement plan
The components of net periodic pension cost of the nonqualified defined benefit retirement plan for the three and six months ended June 30, 2012 and 2011 are summarized as follows (in thousands):

   
Three Months Ended
June 30,
 
Six Months Ended
June 30,
   
2012
 
2011
 
2012
 
2011
Service cost
$
22
 
22
 
44
 
66
Interest cost
 
11
 
8
 
22
 
17
Amortization of unrecognized net (gain) loss
 
5
 
(8)
 
10
 
(12)
Amortization of unrecognized prior service cost
 
7
 
7
 
14
 
18
     Net periodic pension cost
$
45
 
29
 
90
 
89
Amount recognized in accumulated other comprehensive income net of deferred income taxes for nonqualified defined benefit plan
Amounts recognized in accumulated other comprehensive income, net of deferred federal income taxes, at June 30, 2012 and December 31, 2011 for the nonqualified defined benefit retirement plan consists of (in thousands):

   
June 30,
 
 December 31,
   
2012
 
2011
Net actuarial loss
 
$
142
   
156
 
Past service cost
   
64
   
74
 
   
$
206
   
230