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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]  
Adjustment Recorded as a Result of the Adoption of ASC Topic 326
The adoption of ASC Topic 326 was recorded on its original effective date as a cumulative effect adjustment to retained earnings at January 1, 2020, and is shown below.
(Dollars in thousands)December 31, 2019 BalanceTransition AdjustmentJanuary 1, 2020
 ACL Balance
LHFI:
Loans secured by real estate:
Commercial real estate$10,013 $(5,052)$4,961 
Construction/land/land development3,711 1,141 4,852 
Residential real estate6,332 (2,526)3,806 
Total real estate20,056 (6,437)13,619 
Commercial and industrial16,960 7,296 24,256 
Mortgage warehouse lines of credit262 29 291 
Consumer242 360 602 
Total allowance for loan credit losses$37,520 $1,248 $38,768 
Reserve for off-balance sheet exposures$1,810 $(381)$1,429 
Held-to-Maturity Securities:
Municipal securities$— $96 $96