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Note 13 - Accumulated Other Comprehensive Income (Loss) (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Three Months Ended March 31, 2019
 
   
Unrealized Gains
(Losses) on Available-
for-Sale Securities
   
Employee Benefit
Plans
   
Total
 
(Amounts in thousands)
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
  $
(285
)   $
(1,144
)   $
(1,429
)
Other comprehensive loss before reclassifications
   
962
     
(321
)    
641
 
Reclassified from AOCI
   
-
     
55
     
55
 
Other comprehensive (loss) income, net
   
962
     
(266
)    
696
 
Ending balance
  $
677
    $
(1,410
)   $
(733
)
   
Three Months Ended March 31, 2018
 
   
Unrealized Gains
(Losses) on Available-
for-Sale Securities
   
Employee Benefit
Plans
   
Total
 
(Amounts in thousands)
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
  $
975
    $
(1,815
)   $
(840
)
Other comprehensive loss before reclassifications
   
(1,697
)    
-
     
(1,697
)
Reclassified from AOCI
   
-
     
56
     
56
 
Other comprehensive (loss) income, net
   
(1,697
)    
56
     
(1,641
)
Ending balance
  $
(722
)   $
(1,759
)   $
(2,481
)
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
   
Three Months Ended
   
 
 
   
March 31,
   
Income Statement
 
(Amounts in thousands)
 
2019
   
2018
   
Line Item Affected
 
Employee benefit plans
                     
Amortization of prior service cost
  $
64
    $
59
   
(1)
 
Amortization of net actuarial benefit cost
   
5
     
12
   
(1)
 
Reclassified out of AOCI, before tax
   
69
     
71
   
Income before income taxes
 
Income tax expense
   
14
     
15
   
Income tax expense
 
Reclassified out of AOCI, net of tax
   
55
     
56
   
Net income
 
Total reclassified out of AOCI, net of tax
  $
55
    $
56
   
Net income