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Mortgage Banking and Servicing Rights (Tables)
12 Months Ended
Dec. 31, 2022
Mortgage Servicing Rights [Abstract]  
Schedule of mortgage servicing rights capitalized and related amortization, along with activity in the related valuation allowance
($ in thousands)  2022   2021 
         
Carrying amount, beginning of year  $    12,034   $    7,759 
Mortgage servicing rights capitalized during the year   1,939    4,724 
Mortgage servicing rights amortization during the year   (1,749)   (3,885)
Net change in valuation allowance   1,279    3,436 
Carrying amount, end of year  $13,503   $12,034 
           
Valuation allowance:          
Beginning of year  $1,456   $4,892 
Increase (reduction)   (1,279)   (3,436)
           
End of year  $177   $1,456 
           
Fair value, beginning of period  $12,629   $7,759 
Fair value, end of period  $15,754   $12,629