Components of Net Periodic Benefit Cost (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined Benefits Plan Estimated Future Employer Contributions In Next Fiscal Year			$ 250
Defined Benefit Plan, Expected Future Benefit Payment, Remainder of Fiscal Year			703
Defined Contribution Plan Employer Accrued Discretionary Contribution Amount	$ 1,300	$ 1,400
Post Retirement Health Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefits Plan Estimated Future Employer Contributions In Next Fiscal Year			$ 248
Defined Benefit Plan, Plan Assets, Contributions by Employer	116
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 63