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Subordinated Debentures (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Subordinated Debentures      
Total amortization expense $ 95 $ 96  
Subordinated Note Purchase Agreement      
Subordinated Debentures      
Subordinated Debentures 80,000   $ 80,000
Debt Issuance Costs (617)   (712)
Subordinated Debentures, Net of Issuance Costs 79,383   79,288
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%