Regulatory Capital Matters - Schedule of Actual and Required Capital Amounts and Ratios, Exclusive of Capital Conservation Buffer (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total capital (to risk-weighted assets), actual amount	$ 233,132	$ 229,544
Tier 1 capital (to risk-weighted assets), actual amount	211,692	208,707
Common equity Tier 1 capital (to risk-weighted assets), actual amount	211,692	208,707
Tier 1 capital (to average assets), actual amount	$ 211,692	$ 208,707
Total capital (to risk-weighted assets), actual ratio	0.1359	0.1377
Tier 1 capital (to risk-weighted assets), actual ratio	0.1234	0.1252
Common equity Tier 1 capital (to risk-weighted assets), actual ratio	0.1234	0.1252
Tier 1 capital (to average assets), actual ratio	0.0965	0.0957
Bank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total capital (to risk-weighted assets), actual amount	$ 231,995	$ 227,773
Tier 1 capital (to risk-weighted assets), actual amount	210,557	206,936
Common equity Tier 1 capital (to risk-weighted assets), actual amount	210,557	206,936
Tier 1 capital (to average assets), actual amount	$ 210,557	$ 206,936
Total capital (to risk-weighted assets), actual ratio	0.1353	0.1366
Tier 1 capital (to risk-weighted assets), actual ratio	0.1228	0.1241
Common equity Tier 1 capital (to risk-weighted assets), actual ratio	0.1228	0.1241
Tier 1 capital (to average assets), actual ratio	0.0960	0.0949
Total capital (to risk-weighted assets), amount, required for capital adequacy purposes	$ 137,205	$ 133,353
Tier 1 capital (to risk-weighted assets), amount, required for capital adequacy purposes	102,904	100,014
Common equity Tier 1 capital (to risk-weighted assets), amount, required for capital adequacy purposes	77,178	75,011
Tier 1 capital (to average assets), amount, required for capital adequacy purposes	$ 87,736	$ 87,207
Total capital (to risk-weighted assets), ratio, required for capital adequacy purposes	0.0800	0.0800
Tier 1 capital (to risk-weighted assets), ratio, required for capital adequacy purposes	0.0600	0.0600
Common equity Tier 1 capital (to risk-weighted assets), ratio, required for capital adequacy purposes	0.0450	0.0450
Tier 1 capital (to average assets), ratio, required for capital adequacy purposes	0.0400	0.0400
Total capital (to risk-weighted assets), amount, minimum to be considered "Well Capitalized"	$ 171,507	$ 166,691
Tier 1 capital (to risk-weighted assets), amount, minimum to be considered "Well Capitalized"	137,205	133,353
Common equity Tier 1 capital (to risk-weighted assets), amount, minimum to be considered "Well Capitalized"	111,479	108,349
Tier 1 capital (to average assets), amount, minimum to be considered "Well Capitalized"	$ 109,670	$ 109,008
Total capital (to risk-weighted assets), ratio, minimum to be considered "Well Capitalized"	0.1000	0.1000
Tier 1 capital (to risk-weighted assets), ratio, minimum to be considered "Well Capitalized"	0.0800	0.0800
Common equity Tier 1 capital (to risk-weighted assets), ratio, minimum to be considered "Well Capitalized"	0.0650	0.0650
Tier 1 capital (to average assets), ratio, minimum to be considered "Well Capitalized"	0.0500	0.0500