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Investment Securities - Amortized Cost and Estimated Fair Value of Debt Investments by Contractual Maturity (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Available-for-sale securities, debt maturities, amortized cost [Abstract]    
Due in one year or less $ 7,059  
Due after one year through five years 9,760  
Due after five years through ten years 39,087  
Due after ten years 50,535  
Sub-total 106,441  
Amortized cost 199,065 $ 205,230
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]    
Due in one year or less 7,636  
Due after one year through five years 9,528  
Due after five years through ten years 36,222  
Due after ten years 47,526  
Sub-total 100,912  
Available-for-sale securities, debt maturities, fair value, totals 186,779  
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]    
Due in one year or less 1,131  
Due after one year through five years 17,335  
Due after five years through ten years 41,600  
Due after ten years 23,879  
Sub-total 83,945  
Total available-for-sale 201,216 194,402
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]    
Due in one year or less 1,114  
Due after one year through five years 16,898  
Due after five years through ten years 38,624  
Due after ten years 21,420  
Sub-total 78,056  
Held-to-maturity securities at fair value 189,622 181,491
Residential Mortgage-Backed - US Agency [Member]    
Available-for-sale securities, debt maturities, amortized cost [Abstract]    
Amortized cost 17,439 17,982
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]    
Available-for-sale securities, debt maturities, fair value, totals 16,172  
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]    
Total available-for-sale 7,416 7,489
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]    
Held-to-maturity securities at fair value 6,783 6,750
Collateralized Mortgage Obligations - US Agency [Member]    
Available-for-sale securities, debt maturities, amortized cost [Abstract]    
Amortized cost 10,275 13,070
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]    
Available-for-sale securities, debt maturities, fair value, totals 9,260  
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]    
Total available-for-sale 14,843 15,109
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]    
Held-to-maturity securities at fair value 13,651 13,858
Collateralized Mortgage Obligations - Private Label [Member]    
Available-for-sale securities, debt maturities, amortized cost [Abstract]    
Amortized cost 64,910 65,781
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]    
Available-for-sale securities, debt maturities, fair value, totals 60,435  
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]    
Total available-for-sale 95,462 88,497
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]    
Held-to-maturity securities at fair value 91,132 $ 84,071
Held-to-Maturity Securities [Member]    
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]    
Total available-for-sale $ 201,666