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Note 6 - Defined Benefit Plan
 3 Months Ended
Mar. 31, 2017
Notes to Financial Statements  
Pension and Other Postretirement Benefits Disclosure [Text Block]
Note
6
:
Defined Benefit Plan
 
Components of Net Periodic Benefit Cost
 
   
Pension Benefits
  
   
Three
Months Ended March 31,
  
   
20
17
    
20
16
  
Service cost
  
$
173
     $
174
  
Interest cost
  
 
186
      
189
  
Expected return on plan assets
  
 
(274
)
    
(272
)
Amortization of prior service cost
  
 
(27
)
    
(27
)
Recognized net actuarial loss
  
 
135
      
143
  
Net periodic benefit c
ost
  
$
193
     $
207
  
 
201
7
Plan Year
Employer Contribution
 
For the
three
months ended
March
31,
2017,
the Company contributed
$507
to the Plan for the
2016
plan year
.