Investment Securities - Amortized Cost and Estimated Fair Value of Debt Investments by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available-for-sale securities, debt maturities, amortized cost [Abstract]
Due in one year or less	$ 7,075
Due after one year through five years	10,013
Due after five years through ten years	41,457
Due after ten years	85,215
Sub-total	143,760
Amortized cost	278,789	$ 268,751
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]
Due in one year or less	7,300
Due after one year through five years	9,704
Due after five years through ten years	38,109
Due after ten years	84,875
Sub-total	139,988
Available-for-sale securities, debt maturities, fair value, totals	271,771
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]
Due in one year or less	6,709
Due after one year through five years	18,439
Due after five years through ten years	38,105
Due after ten years	15,850
Sub-total	79,103
Total available-for-sale	161,385	179,286
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]
Due in one year or less	6,672
Due after one year through five years	18,257
Due after five years through ten years	35,584
Due after ten years	14,725
Sub-total	75,238
Held-to-maturity securities at fair value	154,972	168,034
Residential Mortgage-Backed - US Agency [Member]
Available-for-sale securities, debt maturities, amortized cost [Abstract]
Amortized cost	35,703	25,446
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]
Available-for-sale securities, debt maturities, fair value, totals	35,234
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]
Total available-for-sale	6,746	6,974
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]
Held-to-maturity securities at fair value	6,297	6,324
Collateralized Mortgage Obligations - US Agency [Member]
Available-for-sale securities, debt maturities, amortized cost [Abstract]
Amortized cost	14,897	13,058
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]
Available-for-sale securities, debt maturities, fair value, totals	14,287
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]
Total available-for-sale	12,517	13,221
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]
Held-to-maturity securities at fair value	11,462	11,928
Collateralized Mortgage Obligations - Private Label [Member]
Available-for-sale securities, debt maturities, amortized cost [Abstract]
Amortized cost	84,429	81,812
Available-for-sale securities, debt maturities, Estimated Fair Value [Abstract]
Available-for-sale securities, debt maturities, fair value, totals	82,262
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]
Total available-for-sale	63,281	76,819
Held-to-maturity Securities, debt maturities, Estimated Fair Value [Abstract]
Held-to-maturity securities at fair value	61,975	$ 73,761
Held-to-Maturity Securities [Member]
Held-to-maturity Securities, debt maturities, amortized cost [Abstract]
Total available-for-sale	$ 161,647