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Note 4 - Comprehensive Income
 3 Months Ended
Mar. 31, 2020
Notes to Financial Statements  
Comprehensive Income (Loss) Note [Text Block]
4
. COMPREHENSIVE
INCOME
 
Comprehensive income is the total of (
1
) net income, and (
2
) all other changes in equity from non-stockholder sources, which are referred to as other comprehensive income (loss). The components of other comprehensive income (loss), and the related tax effects, are as follows:
 
(In Thousands)
   
Before-Tax
    
Income Tax
    
Net-of-Tax
  
   
Amount
    
Effect
    
Amount
  
Three Months Ended March 31, 2020
  
 
 
 
  
 
 
 
  
 
 
 
Other comprehensive income from available-for-sale debt securities, Unrealized holding gains on available-for-sale debt securities
   $
7,240
     $
(1,521
 )   $
5,719
  
                         
Unfunded pension and postretirement obligations:
                        
Changes from plan amendments and actuarial gains and losses
    
88
      
(18
 )    
70
  
Amortization of prior service cost and net actuarial loss included in net periodic benefit cost
    
(8
 )    
2
      
(6
 )
Other comprehensive income on unfunded retirement obligations
    
80
      
(16
 )    
64
  
                         
Total other comprehensive income
   $
7,320
     $
(1,537
 )   $
5,783
  
 
 
(In Thousands)
   
Before-Tax
    
Income Tax
    
Net-of-Tax
  
   
Amount
    
Effect
    
Amount
  
Three Months Ended March 31, 2019
  
 
 
 
  
 
 
 
  
 
 
 
Other comprehensive income from available-for-sale debt securities, Unrealized holding gains on available-for-sale securities
   $
4,261
     $
(895
 )   $
3,366
  
                         
Unfunded pension and postretirement obligations:
                        
Changes from plan amendments and actuarial gains and losses included in other comprehensive income
    
214
      
(45
 )    
169
  
Amortization of prior service cost and net actuarial loss included in net periodic benefit cost
    
(8
 )    
2
      
(6
 )
Other comprehensive income on unfunded retirement obligations
    
206
      
(43
 )    
163
  
                         
Total other comprehensive income
   $
4,467
     $
(938
 )   $
3,529
  
 
Changes in the components of accumulated other comprehensive income (loss) are as follows and are presented net of tax:
 
(In Thousands)
   
Unrealized
    
 
 
 
  
Accumulated
  
   
Gains
    
Unfunded
    
Other
  
   
(Losses)
    
Retirement
    
Comprehensive
  
   
on Securities
    
Obligations
    
Income (Loss)
  
Three Months Ended March 31, 2020
  
 
 
 
  
 
 
 
  
 
 
 
Balance, beginning of period
   $
3,511
     $
180
     $
3,691
  
Other comprehensive income during three months ended March 31, 2020
    
5,719
      
64
      
5,783
  
Balance, end of period
   $
9,230
     $
244
     $
9,474
  
                         
Three Months Ended March 31, 2019
  
 
 
 
  
 
 
 
  
 
 
 
Balance, beginning of period
   $
(4,307
 )   $
137
     $
(4,170
 )
Other comprehensive income during three months ended March 31, 2019
    
3,366
      
163
      
3,529
  
Balance, end of period
   $
(941
 )   $
300
     $
(641
 )
 
Items reclassified out of each component of other comprehensive income (loss) are as follows:
 
For the Three Months Ended
March 31, 2020
(In Thousands)
   
Reclassified from
    
   
Accumulated Other
    
Details about Accumulated Other
 
Comprehensive
  
Affected Line Item in the Consolidated
Comprehensive Income Components
  
Income
  
Statements of Income
Amortization of defined benefit pension and postretirement items:
          
Prior service cost
    
(8
 )
Other noninterest expense
     
2
  
Income tax provision
Total reclassifications for the period
   $
(6
 )
 
 
For the
Three Months
Ended
March
31,
201
9
(In Thousands)
   
Reclassified from
    
   
Accumulated Other
    
Details about Accumulated Other
 
Comprehensive
  
Affected Line Item in the Consolidated
Comprehensive Income (Loss) Components
  
Income (Loss)
  
Statements of Income
Amortization of defined benefit pension and postretirement items:
          
Prior service cost
    
(8
 )
Other noninterest expense
     
2
  
Income tax provision
Total reclassifications for the period
   $
(6
 )