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Regulatory Matters - Additional Information (Details)	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Banking and Thrift, Interest [Abstract]
Minimum ratio of tier 1 capital to total adjusted assets	0.040
Minimum ratio of common equity tier 1 to risk-weighted assets	7.00%
Minimum ratio of tier 1 leverage ratio, For capital adequacy purposes	0.085	0.0400
Minimum ratio of total capital to risk-weighted assets	0.105
Capital conversation buffer	0.0250		0.0250
Tier 1 capital ratio, To be well capitalized	0.050
Common equity tier 1 risk-based ratio, To be well capitalized	6.50%
Tier 1 risk-based capital, To be well capitalized under prompt corrective action ratio	0.080
Total risk-based capital, To be well capitalized under prompt corrective action ratio	0.100

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Leverage buffer percentage as defined by regulatory framework.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 505
-Section 50
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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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