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Investment Securities - Available-for-Sale and Held-to-Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	$ 141,883	$ 130,676
Available-for-sale, gross unrealized gains	8	977
Available-for-sale, gross unrealized losses	(11,096)	(770)
Investment securities available-for-sale, at fair value	130,795	130,883
Held-to-maturity, amortized cost	1,862	3,436
Held-to-maturity, gross unrealized gains		41
Held-to-maturity, gross unrealized losses	(93)
Held-to-maturity, estimated fair value	1,769	3,477
Residential Mortgage Backed Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	47,659	46,020
Available-for-sale, gross unrealized gains	2	450
Available-for-sale, gross unrealized losses	(3,704)	(242)
Investment securities available-for-sale, at fair value	43,957	46,228
Commercial Mortgage Backed Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	12,169	24,647
Available-for-sale, gross unrealized gains	4	371
Available-for-sale, gross unrealized losses	(480)	(47)
Investment securities available-for-sale, at fair value	11,693	24,971
Held-to-maturity, amortized cost	1,167	2,115
Held-to-maturity, gross unrealized gains		29
Held-to-maturity, gross unrealized losses	(41)
Held-to-maturity, estimated fair value	1,126	2,144
US Government Agencies Debt Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	5,116	5,207
Available-for-sale, gross unrealized losses	(846)	(15)
Investment securities available-for-sale, at fair value	4,270	5,192
Held-to-maturity, amortized cost	610	768
Held-to-maturity, gross unrealized gains		10
Held-to-maturity, gross unrealized losses	(40)
Held-to-maturity, estimated fair value	570	778
US States and Political Subdivisions Debt Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	2,166	4,247
Available-for-sale, gross unrealized gains		80
Available-for-sale, gross unrealized losses	(94)	(10)
Investment securities available-for-sale, at fair value	2,072	4,317
Held-to-maturity, amortized cost	85	553
Held-to-maturity, gross unrealized gains		2
Held-to-maturity, gross unrealized losses	(12)
Held-to-maturity, estimated fair value	73	555
Corporate Note Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	17,817	15,458
Available-for-sale, gross unrealized gains	2	76
Available-for-sale, gross unrealized losses	(1,898)	(52)
Investment securities available-for-sale, at fair value	15,921	15,482
US Treasury Securities [Member]
Schedule Of Investments [Line Items]
Available-for-sale, amortized cost	56,956	35,097
Available-for-sale, gross unrealized losses	(4,074)	(404)
Investment securities available-for-sale, at fair value	$ 52,882	$ 34,693

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