XML 72 R62.htm IDEA: XBRL DOCUMENT v3.22.1
Pension and Other Postretirement Benefits - The Components of the Net Pension (Benefit) Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Employee Pension Plan [Member]    
Interest cost $ 138 $ 128
Amortization of actuarial (gain) loss 1 122
Expected return on plan assets (257) (274)
Net pension expense (benefit) (118) (24)
Directors' Plan [Member]    
Service cost 3 4
Interest cost 11 12
Amortization of actuarial (gain) loss (7) (5)
Net pension expense (benefit) 7 11
Other Post Retirement Benefit Plan Defined Benefit [Member]    
Service cost 67 73
Interest cost 70 58
Amortization of past service credit (7) (21)
Net pension expense (benefit) $ 130 $ 110