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Mortgage Servicing Rights (Tables)
 9 Months Ended
Sep. 30, 2022
Transfers and Servicing of Financial Assets [Abstract]  
Schedule of changes in carrying value of mortgage servicing rights and associated valuation allowance
The following table shows changes in the carrying value of MSRs and the associated valuation allowance.
Three Months Ended
September 30,		Nine Months Ended
September 30,
(Dollars in thousands)2022202120222021
Mortgage servicing rights:    
Balance at beginning of period$4,443 $4,678 $4,671 $4,616 
Additions152 395 660 1,566 
Amortization(297)(554)(1,033)(1,663)
Carrying value before valuation allowance at end of period4,298 4,519 4,298 4,519 
Valuation allowance:    
Balance at beginning of period— (223)— (812)
Impairment recoveries— 223 — 812 
Balance at end of period$— $— $— $— 
Net carrying value of mortgage servicing rights at end of period$4,298 $4,519 $4,298 $4,519 
Fair value of mortgage servicing rights at end of period$7,493 $4,999 $7,493 $4,999