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Loans and Allowance for Credit Losses - Allowance for Credit Losses on Loans (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2022
Sep. 30, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance $ 22,113 $ 23,023   $ 23,023 $ 22,874    
Beginning balance 22,113   $ 16,677     $ 16,677  
Provision - incurred loss method     5,450        
Provision (reversal) (856)     (63) (1,449) 4,594  
Initial allowance for PCD loans         1,505    
(Charge-offs) (1)     (32) (5)    
(Charge-offs)     (30)        
Recoveries 14     55 98    
Recoveries     16        
Ending balance 22,874   22,113 22,983 23,023 22,874  
Ending balance     $ 22,113       $ 16,677
Accounting Standards Update [Extensible List]   Accounting Standards Update 2016-13 Accounting Standards Update 2016-13       Accounting Standards Update 2016-13
Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 1,604            
Ending balance     $ 1,604        
Commercial | Commercial and industrial              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 2,525 $ 1,709   1,709 2,530    
Beginning balance 2,525   2,334     2,334  
Provision - incurred loss method     208        
Provision (reversal) 269     72 (1,240)    
Initial allowance for PCD loans         405    
(Charge-offs) 0     (9) 0    
(Charge-offs)     (30)        
Recoveries 14     22 14    
Recoveries     13        
Ending balance 2,530   2,525 1,794 1,709 2,530  
Ending balance     2,525       $ 2,334
Commercial | Commercial and industrial | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance (278)            
Ending balance     (278)        
Commercial real estate | Commercial owner-occupied              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 3,135 2,776   2,776 2,778    
Beginning balance 3,135   2,462     2,462  
Provision - incurred loss method     673        
Provision (reversal) (495)     (289) (561)    
Initial allowance for PCD loans         559    
(Charge-offs) 0     0 0    
(Charge-offs)     0        
Recoveries 0     0 0    
Recoveries     0        
Ending balance 2,778   3,135 2,487 2,776 2,778  
Ending balance     3,135       2,462
Commercial real estate | Commercial owner-occupied | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 138            
Ending balance     138        
Commercial real estate | Commercial investor-owned              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 11,624 12,739   12,739 12,682    
Beginning balance 11,624   8,483     8,483  
Provision - incurred loss method     3,141        
Provision (reversal) (697)     (63) (476)    
Initial allowance for PCD loans         533    
(Charge-offs) 0     0 0    
(Charge-offs)     0        
Recoveries 0     0 0    
Recoveries     0        
Ending balance 12,682   11,624 12,676 12,739 12,682  
Ending balance     11,624       8,483
Commercial real estate | Commercial investor-owned | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 1,755            
Ending balance     1,755        
Commercial real estate | Construction              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 860 1,653   1,653 1,557    
Beginning balance 860   638     638  
Provision - incurred loss method     219        
Provision (reversal) 496     251 62    
Initial allowance for PCD loans         0    
(Charge-offs) 0     0 0    
(Charge-offs)     0        
Recoveries 0     33 34    
Recoveries     3        
Ending balance 1,557   860 1,937 1,653 1,557  
Ending balance     860       638
Commercial real estate | Construction | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 201            
Ending balance     201        
Residential loans | Home equity              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 1,038 595   595 738    
Beginning balance 1,038   850     850  
Provision - incurred loss method     188        
Provision (reversal) 61     (37) (193)    
Initial allowance for PCD loans         0    
(Charge-offs) 0     0 0    
(Charge-offs)     0        
Recoveries 0     0 50    
Recoveries     0        
Ending balance 738   1,038 558 595 738  
Ending balance     1,038       850
Residential loans | Home equity | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance (361)            
Ending balance     (361)        
Residential loans | Other residential              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 1,260 644   644 998    
Beginning balance 1,260   973     973  
Provision - incurred loss method     287        
Provision (reversal) (50)     (49) (360)    
Initial allowance for PCD loans         6    
(Charge-offs) 0     0 0    
(Charge-offs)     0        
Recoveries 0     0 0    
Recoveries     0        
Ending balance 998   1,260 595 644 998  
Ending balance     1,260       973
Residential loans | Other residential | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance (212)            
Ending balance     (212)        
Consumer loans | Installment and other consumer loans              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance 406 621   621 291    
Beginning balance 406   284     284  
Provision - incurred loss method     122        
Provision (reversal) 11     270 333    
Initial allowance for PCD loans         2    
(Charge-offs) (1)     (23) (5)    
(Charge-offs)     0        
Recoveries 0     0 0    
Recoveries     0        
Ending balance 291   406 868 621 291  
Ending balance     406       284
Consumer loans | Installment and other consumer loans | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance (125)            
Ending balance     (125)        
Unallocated              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance   $ 2,286   2,286 1,300    
Beginning balance 1,265   653     653  
Provision - incurred loss method     612        
Provision (reversal) (451)     (218) 986    
Initial allowance for PCD loans         0    
(Charge-offs) 0     0 0    
(Charge-offs)     0        
Recoveries 0     0 0    
Recoveries     0        
Ending balance 1,300     $ 2,068 $ 2,286 $ 1,300  
Ending balance     1,265       $ 653
Unallocated | Cumulative Effect, Period of Adoption, Adjustment              
Allowance for Loan and Lease Losses [Roll Forward]              
Beginning balance $ 486            
Ending balance     $ 486