Investment (Amortized Cost and Fair Values Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jan. 01, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Amortized Cost: Due after one year or less	$ 3,010
Amortized Cost: Due after one year through five years	9,270
Amortized Cost: Due after five years through ten years	1,895
Fair Value: Due after one year or less	2,953
Fair Value: Due after one year through five years	8,391
Fair Value: Due after five years through ten years	1,560
Available-for-sale Securities, Amortized Cost Basis	144,540		$ 149,829
Investment securities - available for sale (at fair value)	114,370	$ 125,889
Amortized Cost: Due one year or less, Held to maturity	37,397
Amortized Cost: Due after one year through five years, Held to maturity	12,500
Amortized Cost: Due after five years through ten years, Held to maturity	38,681
Amortized Cost: Due after ten years, Held to maturity	21,366
Amortized Cost: Total, Held to maturity	109,944
Fair Value: Due one year or less, Held to maturity	36,727
Fair Value: Due after one year through five years, Held to maturity	11,306
Fair Value: Due after five years through ten years, Held to maturity	30,544
Fair Value: Due after ten years, Held to maturity	15,568
Fair Value: Total, Held to maturity	94,145
Held-to-maturity Securities	215,728	$ 245,659	235,659
Held-to-maturity securities, fair value	176,826		203,080
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Amortized Cost: Due after ten years	27,347
Fair Value: Due after ten years	22,055
Available-for-sale Securities, Amortized Cost Basis	42,073		45,052
Investment securities - available for sale (at fair value)	33,369
Held-to-maturity Securities	30,336		28,624
Held-to-maturity securities, fair value	25,841		25,122
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available For Sale Debt Maturities Amortized Cost Sub Total	41,522
Available for sale debt maturities fair value sub total	34,959
Available-for-sale Securities, Amortized Cost Basis	36,722		37,393
Investment securities - available for sale (at fair value)	27,055
Held-to-maturity Securities	21,454		22,389
Held-to-maturity securities, fair value	14,960		17,821
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	24,223		25,828
Investment securities - available for sale (at fair value)	18,987
Held-to-maturity Securities	53,994		57,085
Held-to-maturity securities, fair value	$ 41,880		$ 47,084