Shareholder's Equity - Summary of Actual Capital Amount and Well Capitalized Total Risk-Based, Tier I Risk-Based, and Tier I Leverage Ratios (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Equity [Abstract]
Common equity Tier 1 capital (to risk-weighted assets), Actual Regulatory Capital, Amount	$ 77,510	$ 74,375
Tier 1 capital (to risk-weighted assets) Actual Regulatory Capital, Amount	77,510	74,375
Total capital (to risk-weighted assets), Actual Regulatory Capital, Amount	84,980	80,137
Tier 1 capital (to risk-weighted assets), Actual Regulatory Capital, Amount	$ 77,510	$ 74,375
Common equity Tier 1 capital (to risk-weighted assets), Actual Regulatory Capital, Ratio	0.1178	0.1278
Tier 1 capital (to risk-weighted assets), Actual Regulatory Capital, Ratio	0.1178	0.1278
Total capital (to risk-weighted assets), Actual Regulatory Capital, Ratio	0.1292	0.1377
Tier 1 leverage (to average assets), Actual Regulatory Capital, Ratio	0.0898	0.0961
Common equity Tier 1 capital (to risk-weighted assets), Minimum Requirement	7.00%	7.00%
Tier 1 capital (to risk-weighted assets), Minimum Requirement	0.0850	0.0850
Total capital (to risk-weighted assets), Minimum Requirement	0.1050	0.1050
Tier 1 leverage (to average assets), Minimum Requirement	0.0400	0.0400
Common equity Tier 1 capital (to risk-weighted assets), To Be Well Capitalized	6.50%	6.50%
Tier 1 capital (to risk-weighted assets), To Be Well Capitalized	0.0800	0.0800
Total capital (to risk-weighted assets), To Be Well Capitalized	0.1000	0.1000
Tier 1 leverage (to average assets), To Be Well Capitalized	0.0500	0.0500

Common equity tier one risk based capital required for capital adequacy to risk weighted assets.

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Common equity tier one risk based capital required to be well capitalized to risk weighted asset.

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Amount of total capital as defined by regulatory framework.

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-Topic 948
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Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.

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Ratio of minimum total risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.

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Amount of Common Equity Tier 1 risk-based capital as defined by regulatory framework.

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Amount of Tier 1 leverage capital as defined by regulatory framework.

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