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Investment Securities - Available-for-Sale and Held-to-Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	$ 154,662	$ 130,676
Available-for-sale, gross unrealized gains	137	977
Available-for-sale, gross unrealized losses	(11,005)	(770)
Investment securities available-for-sale, at fair value	143,794	130,883
Held-to-maturity, amortized cost	2,109	3,436
Held-to-maturity, gross unrealized gains		41
Held-to-maturity, gross unrealized losses	(96)
Held-to-maturity, estimated fair value	2,013	3,477
Residential Mortgage Backed Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	50,647	46,020
Available-for-sale, gross unrealized gains	1	450
Available-for-sale, gross unrealized losses	(3,801)	(242)
Investment securities available-for-sale, at fair value	46,847	46,228
Commercial Mortgage Backed Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	18,324	24,647
Available-for-sale, gross unrealized gains	134	371
Available-for-sale, gross unrealized losses	(418)	(47)
Investment securities available-for-sale, at fair value	18,040	24,971
Held-to-maturity, amortized cost	1,334	2,115
Held-to-maturity, gross unrealized gains		29
Held-to-maturity, gross unrealized losses	(37)
Held-to-maturity, estimated fair value	1,297	2,144
US Government Agencies Debt Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	5,118	5,207
Available-for-sale, gross unrealized losses	(778)	(15)
Investment securities available-for-sale, at fair value	4,340	5,192
Held-to-maturity, amortized cost	675	768
Held-to-maturity, gross unrealized gains		10
Held-to-maturity, gross unrealized losses	(46)
Held-to-maturity, estimated fair value	629	778
US States and Political Subdivisions Debt Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	3,789	4,247
Available-for-sale, gross unrealized gains	0	80
Available-for-sale, gross unrealized losses	(127)	(10)
Investment securities available-for-sale, at fair value	3,662	4,317
Held-to-maturity, amortized cost	100	553
Held-to-maturity, gross unrealized gains		2
Held-to-maturity, gross unrealized losses	(13)
Held-to-maturity, estimated fair value	87	555
Corporate Notes [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	19,838	15,458
Available-for-sale, gross unrealized gains	2	76
Available-for-sale, gross unrealized losses	(1,680)	(52)
Investment securities available-for-sale, at fair value	18,160	15,482
US Treasury Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	56,946	35,097
Available-for-sale, gross unrealized losses	(4,201)	(404)
Investment securities available-for-sale, at fair value	$ 52,745	$ 34,693

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