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Subordinated Debentures (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Subordinated Debentures      
Total amortization expense $ 287 $ 320  
Subordinated Note Purchase Agreement      
Subordinated Debentures      
Subordinated Debentures 80,000   $ 80,000
Debt Issuance Costs (808)   (1,095)
Subordinated Debentures, Net of Issuance Costs 79,192   78,905
Subordinated Note Purchase Agreement | 5.25% Fixed-to-Floating Rate Subordinated Notes due 2030      
Subordinated Debentures      
Subordinated Debentures $ 50,000   $ 50,000
Interest rate (as a percent) 5.25%   5.25%
Subordinated Note Purchase Agreement | 5.25% Fixed-to-Floating Rate Subordinated Notes due 2030 | SOFR      
Subordinated Debentures      
Variable spread on debt (as a percent) 5.13%    
Subordinated Note Purchase Agreement | 3.25% Fixed-to-Floating Rate Subordinated Notes due 2031      
Subordinated Debentures      
Subordinated Debentures $ 30,000   $ 30,000
Interest rate (as a percent) 3.25%   3.25%
Subordinated Note Purchase Agreement | 3.25% Fixed-to-Floating Rate Subordinated Notes due 2031 | SOFR      
Subordinated Debentures      
Variable spread on debt (as a percent) 2.52%