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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 ($) | Dec. 31, 2019 USD ($)
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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

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- Definition Amount of total capital as defined by regulatory framework. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 + Details
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