Regulatory Capital Requirements - Summary of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) $ in Thousands	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Risk-Based Capital, Actual Amount	$ 176,952	$ 157,206
Total Risk-Based Capital, Actual Ratio	0.4766	0.3930
Tier 1 Risk-Based Capital , Actual amount	$ 172,728	$ 152,491
Tier 1 Risk-Based Capital , Actual Ratio	0.4652	0.3812
Common Equity Tier 1 Capital, Actual amount	$ 172,728	$ 152,491
Common Equity Tier 1 Capital , Actual Ratio	0.4652	0.3812
Tier 1 Leverage Ratio, Actual amount	$ 172,728	$ 152,491
Tier 1 Leverage Ratio , Actual Ratio	0.1028	0.1148
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Risk-Based Capital, Actual Amount	$ 165,665	$ 131,750
Total Risk-Based Capital, Actual Ratio	0.4463	0.3294
Total Risk-Based Capital, Minimum Capital Requirement Amount	$ 38,977	$ 41,998
Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum	0.1050	0.1050
Total Risk-Based Capital, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 37,121	$ 39,998
Total Risk-Based Capital, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	0.1000	0.1000
Tier 1 Risk-Based Capital , Actual amount	$ 161,442	$ 127,034
Tier 1 Risk-Based Capital , Actual Ratio	0.4349	0.3176
Tier 1 Risk-Based, Capital Minimum Capital Requirement, Amount	$ 31,553	$ 33,998
Tier 1 Risk-Based, Capital Minimum Capital Requirement, Ratio	0.0850	0.0850
Tier 1 Risk-Based Capital, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 29,697	$ 31,999
Tier 1 Risk-Based Capital, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0800	0.0800
Common Equity Tier 1 Capital, Actual amount	$ 161,442	$ 127,034
Common Equity Tier 1 Capital , Actual Ratio	0.4349	0.3176
Common Equity Tier 1 Capital, Capital Minimum Capital Requirement, Amount	$ 25,985	$ 27,999
Common Equity Tier 1 Capital, Capital Minimum Capital Requirement, Ratio	0.0700	0.0700
Common Equity Tier 1 Capital, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 24,129	$ 25,999
Common Equity Tier 1 Capital, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0650	0.0650
Tier 1 Leverage Ratio, Actual amount	$ 161,442	$ 127,034
Tier 1 Leverage Ratio , Actual Ratio	0.0961	0.0957
Tier 1 Leverage Ratio, Capital Minimum Capital Requirement, Amount	$ 67,201	$ 53,119
Tier 1 Leverage Ratio, Capital Minimum Capital Requirement, Ratio	0.0400	0.0400
Tier 1 Leverage Ratio, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 84,002	$ 66,399
Tier 1 Leverage Ratio, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0500	0.0500