XML 71 R61.htm IDEA: XBRL DOCUMENT v3.22.2.2
Pension and Other Postretirement Benefit Plans (Details) - USD ($)
 9 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Directors' Plan [Member]    
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year   $ 300,000
Defined Benefit Plan, Plan Assets, Contributions by Employer $ 100,000  
Other Postretirement Benefits Plan [Member]    
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year   $ 300,000
Defined Benefit Plan, Plan Assets, Contributions by Employer 18,000  
Employee Pension Plan [Member] | Savings Bank [Member]    
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year $ 0