XML 39 R30.htm IDEA: XBRL DOCUMENT v3.22.2.2
Note 9 - Employee Retirement Plans (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
   

Pension benefits

   

Postretirement benefits

 
   

Three months ended

   

Nine months ended

   

Three months ended

   

Nine months ended

 
   

September 30,

   

September 30,

   

September 30,

   

September 30,

 
   

2022

   

2021

   

2022

   

2021

   

2022

   

2021

   

2022

   

2021

 

Service cost

  $ 32     $ 32     $ 96     $ 96     $ 3     $ 3     $ 7     $ 8  

Interest cost

    28       22       82       65       3       3       11       11  

Expected return on plan assets

    (55 )     (54 )     (164 )     (162 )                        

Amortization of prior service cost (credit)

    1       1       4       3       (2 )     (1 )     (4 )     (4 )

Recognition of actuarial loss (gain)

                22       10       (2 )           (3 )     1  

Total pension and postretirement benefit expense

  $ 6     $ 1     $ 40     $ 12     $ 2     $ 5     $ 11     $ 16