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Investment Securities - Amortized Cost and Estimated Fair Value by Maturity Date (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Amortized Cost    
Due in one year or less $ 2,481  
Due after one year through five years 21,363  
Due after five years through ten years 2,556  
Due after ten years 253  
Amortized Cost 26,653  
Amortized Cost 188,267 $ 159,593
Fair Value    
Due in one year or less 2,483  
Due after one year through five years 19,690  
Due after five years through ten years 2,868  
Due after ten years 237  
Fair Value 25,278  
Available for sale securities 181,720 149,212
Amortized Cost    
Due in one year or less 28,563  
Due after one year through five years 77,589  
Due after five years through ten years 5,490  
Due after ten years 10,204  
Amortized Cost 121,846  
Amortized Cost 433,535 481,280
Fair Value    
Due in one year or less 28,348  
Due after one year through five years 74,265  
Due after five years through ten years 5,026  
Due after ten years 8,547  
Fair Value 116,186  
Estimated Fair Value 393,540 424,734
Mortgage-backed securities    
Amortized Cost    
Mortgage-backed securities 161,614  
Amortized Cost 161,614 130,439
Fair Value    
Mortgage-backed securities 156,442  
Available for sale securities 156,442 122,384
Amortized Cost    
Mortgage-backed securities 311,689  
Amortized Cost 311,689 336,755
Fair Value    
Mortgage-backed securities 277,354  
Estimated Fair Value $ 277,354 $ 289,521