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Benefit Plans (Changes in the defined benefit pension plan) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in benefit obligation      
Benefit obligation, January 1 $ 10,358 $ 10,209  
Interest cost 233 306 $ 378
Actuarial (gain) loss (357) 682  
Defined Benefit Plan, Benefit Obligation, Benefits Paid 509 839  
Benefit obligation, December 31 9,725 10,358 10,209
Change in plan assets      
Fair value of plan assets, January 1 8,263 8,352  
Investment return 831 750  
Contributions 64 0  
Defined Benefit Plan, Plan Assets, Benefits Paid 509 839  
Fair value of plan assets, December 31 8,649 8,263 8,352
Deficiency in funded status at December31, included on the consolidated balance sheets in accrued interest payable and other liabilities (1,076) (2,095)  
Defined Benefit Plan, Accumulated Benefit Obligation 9,725 10,358  
Accrued benefit cost at January 1 (2,095) (1,857)  
Contributions 64 0  
Net periodic cost for the year 31 (176) (268)
Net change in unrecognized actuarial loss and prior service cost 924 (62) 58
Accrued benefit cost at December 31 $ (1,076) $ (2,095) $ (1,857)