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Mortgage Loan Servicing (Tables)
12 Months Ended
Dec. 31, 2021
Mortgage Loan Servicing  
Schedule of Participating Mortgage Loans

Mortgage loans serviced for others are not reported as assets. The following table provides information on the principal balances of mortgage loans serviced for others:

 

(Dollars in thousands)  As of December 31, 
   2021   2020 
FHLMC  $697,484   $639,875 
FHLB   18,218    28,157 
Total  $715,702   $668,032 
Schedule of Servicing Asset at Amortized Cost

Activity for mortgage servicing rights and the related valuation allowance follows:

 

   2021   2020 
(Dollars in thousands)  As of December 31, 
   2021   2020 
Mortgage servicing rights:          
Balance at beginning of year  $3,726   $2,446 
Additions   1,946    2,705 
Amortization   (1,479)   (1,425)
Balance at end of year  $4,193   $3,726