Investment (Amortized Cost and Fair Values Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Amortized Cost: Due after one year or less	$ 340
Amortized Cost: Due after one year through five years	11,956
Amortized Cost: Due after five years through ten years	1,895
Fair Value: Due after one year or less	340
Fair Value: Due after one year through five years	11,151
Fair Value: Due after five years through ten years	1,729
Available-for-sale Securities, Amortized Cost Basis	148,236		$ 149,829
Investment securities - available for sale (at fair value)	123,978	$ 125,889	125,889
Available-for-sale Securities	123,978	125,889	125,889
Amortized Cost: Due one year or less, Held to maturity	29,813
Amortized Cost: Due after one year through five years, Held to maturity	19,955
Amortized Cost: Due after five years through ten years, Held to maturity	33,058
Amortized Cost: Due after ten years, Held to maturity	44,870
Amortized Cost: Total, Held to maturity	127,696
Fair Value: Due one year or less, Held to maturity	28,847
Fair Value: Due after one year through five years, Held to maturity	18,674
Fair Value: Due after five years through ten years, Held to maturity	28,028
Fair Value: Due after ten years, Held to maturity	40,238
Fair Value: Total, Held to maturity	115,787
Held-to-maturity Securities	233,083	$ 245,659	235,659
Held-to-maturity securities, fair value	204,541		203,080
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Amortized Cost: Due after ten years	27,348
Fair Value: Due after ten years	22,006
Available-for-sale Securities, Amortized Cost Basis	44,224		45,052
Investment securities - available for sale (at fair value)	37,281		37,401
Available-for-sale Securities	37,281		37,401
Held-to-maturity Securities	27,624		28,624
Held-to-maturity securities, fair value	24,586		25,122
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available For Sale Debt Maturities Amortized Cost Sub Total	41,539
Available for sale debt maturities fair value sub total	35,226
Available-for-sale Securities, Amortized Cost Basis	37,151		37,393
Investment securities - available for sale (at fair value)	30,494		30,732
Available-for-sale Securities	30,494		30,732
Held-to-maturity Securities	21,635		22,389
Held-to-maturity securities, fair value	17,069		17,821
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	25,322		25,828
Investment securities - available for sale (at fair value)	20,977		21,044
Available-for-sale Securities	20,977		21,044
Held-to-maturity Securities	56,128		57,085
Held-to-maturity securities, fair value	$ 47,099		$ 47,084